LIMA, Oct 30 – The member governments of the Intergovernmental Panel on Climate Change (IPCC) agreed on the scientific content of the 2027 Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage at the Panel’s 63rd Plenary session, which closed this evening in Lima, Peru.
This is one of two methodology reports of the seventh assessment cycle. Carbon Dioxide Removal refers to anthropogenic activities that remove CO2 from the atmosphere and store it durably in geological reservoirs or in products.
The decision opens the next important stage in the report production in which member governments, observer organizations, and IPCC Bureau members will nominate experts to serve as authors.
With this decision, the entire scientific content of all planned reports for the seventh assessment cycle has been agreed upon, clearing the way for their production.
The Panel also agreed on the 2026 workplan for the three Working Group contributions to the Seventh Assessment Report (AR7). The Panel invited the three Working Groups to continue their work by convening Lead Author meetings and other activities planned and budgeted for 2026. The work on the three Working Group contributions to the Seventh Assessment Report will kick off in Paris already in December this year with the first-ever joint Lead Author meeting.
“Panel’s decisions in Lima give strong impetus to our work on our methodology reports and ensure the continuity of IPCC scientific activities and operations related to the production of the three Working Group contributions to the Seventh Assessment Report,” said IPCC Chair Jim Skea.
The three Working Group contributions assess the physical science basis of climate change; impacts, adaptation and vulnerability; and mitigation of climate change.
The Panel also approved IPCC’s overall budget for 2026.
For more information, contact:
IPCC Press Office
Email: ipcc-media@wmo.int
Andrej Mahecic: +41 79 704 2459 Werani Zabula: +41 22 730 8120
Notes for Editors
What is the IPCC?
The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.
Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, scientists and experts volunteer their time as IPCC authors to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.
The IPCC has three working groups: Working Group I, dealing with the physical science basis of climate change; Working Group II, dealing with impacts, adaptation and vulnerability; and Working Group III, dealing with the mitigation of climate change. It also has a Task Force on National Greenhouse Gas Inventories that develops methodologies for measuring emissions and removals.
IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency.
About the Seventh Assessment Cycle
Comprehensive scientific assessment reports are published every 5 to 7 years. The IPCC is currently in its seventh assessment cycle, which formally began in July 2023 with the elections of the new IPCC and Task Force Bureaus at the IPCC’s Plenary Session in Nairobi.
At its first Plenary Session in the seventh assessment cycle – the 60th Plenary Session in Istanbul, Türkiye, in January 2024 – the Panel agreed to produce in this cycle the three Working Group contributions to the Seventh Assessment Report (AR7), namely the Working Group I report on the Physical Science Basis, the Working Group II report on Impacts, Adaptation and Vulnerability and the Working Group III report on Mitigation of Climate Change. The Synthesis Report of the Seventh Assessment Report will be produced after the completion of the Working Group reports and released by late 2029.
The Panel decided already during the previous cycle to produce a Special Report on Climate Change and Cities and a Methodology Report on Short-lived Climate Forcers during AR7.. Scientists have also been asked to deliver a Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage. At the IPCC’s 61st Plenary Session held in Sofia, Bulgaria, from 27 July to 2 August 2024, the Panel agreed upon the outlines for the Special Report on Climate Change and Cities scheduled for approval and publication in March 2027 and for the 2027 IPCC Methodology Report on Inventories for Short-lived Climate Forcers scheduled for publication in the second half 2027. The Panel agreed on the outlines of the Working Group contributions to the Seventh Assessment Report during its 62nd Session in February 2025 held in in Hangzhou, China.
In addition, a revision of the 1994 IPCC Technical Guidelines on impacts and adaptation as well as adaptation indicators, metrics and guidelines, will be developed in conjunction with the Working Group II report and published as a separate product.
IPCC’s latest report, the Sixth Assessment Report, was completed in March 2023 with the release of its Synthesis Report, which provided direct scientific input to the First Global Stocktake process under the United Nations Framework Convention on Climate Change at COP28 in Dubai.
The Sixth Assessment Report comprises three Working Group contributions and a Synthesis Report. The Working Group I contribution Climate Change 2021: the Physical Science Basis was released on 9 August 2021. The Working Group II contribution, Climate Change 2022: Impacts, Adaptation and Vulnerability, was released on 28 February 2022. The Working Group III contribution, Climate Change 2022: Mitigation of Climate Change, was released on 4 April 2022 and the Synthesis Report on 20 March 2023. The Synthesis Report to the Sixth Assessment Report, distils and integrates the findings of the three Working Group assessments as well as the three Special Reports released in 2018 and 2019.
The special reports were on Global Warming of 1.5°C (October 2018.), Climate Change and Land (August 2019) and, the Ocean and Cryosphere in a Changing Climate (September 2019).
For more information visit www.ipcc.ch.
The website includes outreach materials including videos about the IPCC and video recordings from outreach events conducted as webinars or live-streamed events.
Most videos published by the IPCC can be found on our YouTube channel.
LIMA, PERU, Oct 27 – The Intergovernmental Panel on Climate Change (IPCC) today opened its 63rd Plenary Session in Lima, Peru, bringing together some 300 delegates from IPCC member governments and observer organizations to advance its work in the seventh assessment cycle.
Over the four-day session, the Panel will continue discussions on the timelines for the three Working Group contributions to the Seventh Assessment Report (AR7), as well as on the draft outline and timeline of the Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage.
In addition, the Panel will discuss the IPCC’s Trust Fund programme and budget for 2026, the indicative budget for 2027 and 2028, a proposal for an expert meeting, and other agenda items.
“By now, we know the scope of the Seventh Assessment Report, and we have selected the scientists who will be delivering the work,” said IPCC Chair Jim Skea. “Building on the progress made so far, the Panel now needs to settle the important matter of the timelines for producing the reports, taking into account inclusive assessment practices and policy relevance. I trust that Panel members will seek consensus on the timelines in line with the IPCC’s established procedures.”
The Peruvian Minister of Foreign Affairs Hugo de Zela addressed the opening of the IPCC’s 63rd Plenary Session, reaffirming the country’s commitment to the global fight against climate change. In his remarks, Minister De Zela urged member states to act with a sense of urgency and responsibility to finalize the reports and methodologies necessary to accelerate climate action.
“Information produced by the IPCC remains essential to guiding the policy decisions of States seeking to reduce global warming,” said Minister De Zela.
The IPCC’s seventh assessment cycle formally began in July 2023 and will culminate in the release of the AR7 Synthesis Report in 2029. In this cycle, the IPCC will prepare the AR7, which comprises three Working Group contributions and a Synthesis Report, as well as update the 1994 Technical Guidelines for Assessing Climate Change Impact and Adaptation. The Panel will also produce a Special Report on Climate Change and Cities, and two Methodology Reports.
Delegates were welcomed at an opening ceremony in Lima this morning, which included remarks from Peru’s Minister of Foreign Affairs, Ambassador Hugo de Zela, Deputy Minister of Strategic Development of Natural Resources for Peru’s Ministry of Environment, Raquel Hilianova Soto Torres, the IPCC Chair Jim Skea, and Director of Climate Change Division of the UN Environment Programme (UNEP) Martin Krause. The opening also included projections of video messages from Celeste Saulo, the Secretary-General of the World Meteorological Organization and Simon Stiell, the Executive Director of the United Nations Framework Convention on Climate Change.
Except for the opening session, the IPCC meeting is closed to the media. Visuals and video messages from the opening ceremony will be available here.
For more information, contact:
IPCC Press Office
Email: ipcc-media@wmo.int
Andrej Mahecic: +41 79 704 2459 Werani Zabula: +41 22 730 8120
Notes for Editors
What is the IPCC?
The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.
Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, scientists and experts volunteer their time as IPCC authors to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.
The IPCC has three working groups: Working Group I, dealing with the physical science basis of climate change; Working Group II, dealing with impacts, adaptation and vulnerability; and Working Group III, dealing with the mitigation of climate change. It also has a Task Force on National Greenhouse Gas Inventories that develops methodologies for measuring emissions and removals.
IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency.
About the Seventh Assessment Cycle
Comprehensive scientific assessment reports are published every 5 to 7 years. The IPCC is currently in its seventh assessment cycle, which formally began in July 2023 with the elections of the new IPCC and Task Force Bureaus at the IPCC’s Plenary Session in Nairobi.
At its first Plenary Session in the seventh assessment cycle – the 60th Plenary Session in Istanbul, Türkiye, in January 2024 – the Panel agreed to produce in this cycle the three Working Group contributions to the Seventh Assessment Report (AR7), namely the Working Group I report on the Physical Science Basis, the Working Group II report on Impacts, Adaptation and Vulnerability and the Working Group III report on Mitigation of Climate Change. The Synthesis Report of the Seventh Assessment Report will be produced after the completion of the Working Group reports and released by late 2029.
The Panel decided already during the previous cycle to produce a Special Report on Climate Change and Cities and a Methodology Report on Short-lived Climate Forcers during AR7.. Scientists have also been asked to deliver a Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage. At the IPCC’s 61st Plenary Session held in Sofia, Bulgaria, from 27 July to 2 August 2024, the Panel agreed upon the outlines for the Special Report on Climate Change and Cities scheduled for approval and publication in March 2027 and for the 2027 IPCC Methodology Report on Inventories for Short-lived Climate Forcers scheduled for publication in the second half 2027. The Panel agreed on the outlines of the Working Group contributions to the Seventh Assessment Report during its 62nd Session in February 2025 held in in Hangzhou, China.
In addition, a revision of the 1994 IPCC Technical Guidelines on impacts and adaptation as well as adaptation indicators, metrics and guidelines, will be developed in conjunction with the Working Group II report and published as a separate product.
IPCC’s latest report, the Sixth Assessment Report, was completed in March 2023 with the release of its Synthesis Report, which provided direct scientific input to the First Global Stocktake process under the United Nations Framework Convention on Climate Change at COP28 in Dubai.
The Sixth Assessment Report comprises three Working Group contributions and a Synthesis Report. The Working Group I contribution Climate Change 2021: the Physical Science Basis was released on 9 August 2021. The Working Group II contribution, Climate Change 2022: Impacts, Adaptation and Vulnerability, was released on 28 February 2022. The Working Group III contribution, Climate Change 2022: Mitigation of Climate Change, was released on 4 April 2022 and the Synthesis Report on 20 March 2023. The Synthesis Report to the Sixth Assessment Report, distils and integrates the findings of the three Working Group assessments as well as the three Special Reports released in 2018 and 2019.
The special reports were on Global Warming of 1.5°C (October 2018.), Climate Change and Land (August 2019) and, the Ocean and Cryosphere in a Changing Climate (September 2019).
For more information visit www.ipcc.ch.
The website includes outreach materials including videos about the IPCC and video recordings from outreach events conducted as webinars or live-streamed events.
Most videos published by the IPCC can be found on our YouTube channel.
27 October 2025, Lima, Peru.
Check against delivery
Your Excellency, Minister of Foreign Affairs, Ambassador Hugo de Zela,
Deputy Minister of Strategic Development of Natural Resources at the Ministry of Environment, Ms Raquel Hilianova Soto Torres,
Director of Climate Change Division of the UN Environment Programme, Martin Krause,
Distinguished delegates, dear colleagues, ladies and gentlemen,
Welcome to the sixty-third plenary session of the Intergovernmental Panel on Climate Change – the IPCC.
Allow me first to greet government delegations, representatives of observer organisations and members of the IPCC Bureau.
As the IPCC Chair, I wish to thank our hosts – the Peruvian government and the city of Lima – for their hospitality and excellent organisation. I know that they have made extraordinary efforts to show their hospitality and welcome us here in not the easiest circumstances.
Our host is a country of ancient civilisation – the Inca people. We have much to learn from cultures that came before us. The structures at Machu Picchu stand as a testament to the Incas’ engineering prowess, with structures built to last and designed to be earthquake-resistant. They practised disaster risk reduction before the term was invented.
This brings me to why we are in Lima this week. More than two years into the seventh assessment cycle, this is our fourth Plenary session. Input from the elected Bureau has been instrumental work in guiding the Panel and ensuring steady progress.
The expert review of the First Order Draft of the Special Report on Cities and Climate Change began ten days ago and will run until mid-December. The second Lead Author meeting for the Methodology Report on Short-Lived Climate Forcers took place less than two weeks ago, and authors are now working on the First Order Draft.
The Panel’s February decision on the scientific content of the three Working Group contributions to the Seventh Assessment Report enabled us to invite nominations of experts to serve as authors. The Bureau concluded its selection in July, and by the end of August, we had appointed 664 authors from more than 100 countries. Among them are seven Peruvian scientists working on the Special Report on Climate Change and Cities and the three Working Groups’ reports. With nominations exceeding available places by a factor of almost six, this speaks to the high quality of the Peruvian nominations.
During these 24 months of the cycle, significant progress has been made on expanded access to scientific literature for authors from developing countries, on a successful Expert Meeting on Gender, Diversity and Inclusion, and on securing support for Chapter Scientists from developing countries. These efforts reflect a growing commitment to inclusivity, diversity and equity across IPCC.
Ladies and gentlemen,
By now, we know the scope of scientific knowledge we need to assess for the Seventh Assessment Report, and who will be delivering the work.
The missing piece is a Panel decision setting out the workplans for the three Working Group reports. This is one of the priority agenda items this week.
Our work for this week also includes completing the outline of the Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilisation and Storage. Agreement on the outline is essential if we are to move forward promptly with this report.
Before I close, allow me to thank our member governments for their scientific and financial support. Our delivery of the most up-to-date, rigorously reviewed, best available science relies on voluntary financial contributions from our member governments.
I invite all member governments to offer support for the vitally important work that the Panel has agreed upon for this cycle. The IPCC Trust Fund is the main mechanism supporting participation from developing country governments and scientists.
Every contribution to the IPCC Trust Fund is important and appreciated. But predictable, multi-year funding commitments are especially valuable. They are vital for securing a sustainable and inclusive basis for IPCC’s current and future work.
Your voluntary contributions ensure the scientific integrity and continuity of the IPCC as the most authoritative and policy-relevant voice on climate science globally.
Thank you.
ENDS
The representatives of member governments and observer organizations of the Intergovernmental Panel on Climate Change (IPCC) will be meeting in Lima, Peru, from 27 to 30 October 2025.
The Panel, comprising 195 member governments, is expected to continue discussions on the workplan of the Working Group contributions to the Seventh Assessment Report, as well as on the draft outline and workplan of the Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage.
The 63rd Session of the Panel, hosted by the Peruvian government, will also consider proposals for Expert Meetings and Workshops to be held in its current cycle as well as the IPCC’s program and budget, among other business.
Opening session
The opening session of the meeting will take place on Monday, 27 October 2025, at 10.00 a.m. Lima local time (UTC-5) at ESAN Convention Centre in Lima. During the opening, the Plenary will be addressed by IPCC Chair Jim Skea, Peru’s Minister of Foreign Affairs Ambassador Hugo de Zela, Deputy Minister of Strategic Development of Natural Resources for Peru’s Ministry of Environment, Raquel Hilianova Soto Torres, and Director of Climate Change Division of the UN Environment Programme (UNEP) Martin Krause.
The delegates will also see the video messages from Celeste Saulo, the Secretary-General of the World Meteorological Organization and Simon Stiell, the Executive Director of the United Nations Framework Convention on Climate Change.
Where: ESAN Convention Centre, Jr. Alonso de Molina 1652, Santiago de Surco, Lima, Peru
Except for the opening session, the IPCC Plenary meetings are closed to media.
Remarks from the opening session and other assets will be posted here.
For more information, contact:
Peruvian government media contact: prensa@rree.gob.pe
IPCC Press Office, Email: ipcc-media@wmo.int;
Andrej Mahecic, +41 22 730 8516; Werani Zabula, +41 22 730 8120
Notes for Editors
What is the IPCC?
The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.
Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, scientists and experts volunteer their time as IPCC authors to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.
The IPCC has three working groups: Working Group I, dealing with the physical science basis of climate change; Working Group II, dealing with impacts, adaptation and vulnerability; and Working Group III, dealing with the mitigation of climate change. It also has a Task Force on National Greenhouse Gas Inventories that develops methodologies for measuring emissions and removals.
IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency.
About the Seventh Assessment Cycle
Comprehensive scientific assessment reports are published every 5 to 7 years. The IPCC is currently in its seventh assessment cycle, which formally began in July 2023 with the elections of the new IPCC and Task Force Bureaus at the IPCC’s Plenary Session in Nairobi.
At its first Plenary Session in the seventh assessment cycle – the 60th Plenary Session in Istanbul, Türkiye, in January 2024 – the Panel agreed to produce in this cycle the three Working Group contributions to the Seventh Assessment Report (AR7), namely the Working Group I report on the Physical Science Basis, the Working Group II report on Impacts, Adaptation and Vulnerability and the Working Group III report on Mitigation of Climate Change. The Synthesis Report of the Seventh Assessment Report will be produced after the completion of the Working Group reports and released by late 2029.
The Panel decided already during the previous cycle to produce a Special Report on Climate Change and Cities and a Methodology Report on Short-lived Climate Forcers during AR7.. Scientists have also been asked to deliver a Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage. At the IPCC’s 61st Plenary Session held in Sofia, Bulgaria, from 27 July to 2 August 2024, the Panel agreed upon the outlines for the Special Report on Climate Change and Cities scheduled for approval and publication in March 2027 and for the 2027 IPCC Methodology Report on Inventories for Short-lived Climate Forcers scheduled for publication in the second half 2027.
In addition, a revision of the 1994 IPCC Technical Guidelines on impacts and adaptation as well as adaptation indicators, metrics and guidelines, will be developed in conjunction with the Working Group II report and published as a separate product.
IPCC’s latest report, the Sixth Assessment Report, was completed in March 2023 with the release of its Synthesis Report, which provided direct scientific input to the First Global Stocktake process under the United Nations Framework Convention on Climate Change at COP28 in Dubai.
The Sixth Assessment Report comprises three Working Group contributions and a Synthesis Report. The Working Group I contribution Climate Change 2021: the Physical Science Basis was released on 9 August 2021. The Working Group II contribution, Climate Change 2022: Impacts, Adaptation and Vulnerability, was released on 28 February 2022. The Working Group III contribution, Climate Change 2022: Mitigation of Climate Change, was released on 4 April 2022 and the Synthesis Report on 20 March 2023. The Synthesis Report to the Sixth Assessment Report, distils and integrates the findings of the three Working Group assessments as well as the three Special Reports released in 2018 and 2019.
The special reports were on Global Warming of 1.5°C (October 2018.), Climate Change and Land (August 2019) and, the Ocean and Cryosphere in a Changing Climate (September 2019).
For more information visit www.ipcc.ch.
The website includes outreach materials including videos about the IPCC and video recordings from outreach events conducted as webinars or live-streamed events. Most videos published by the IPCC can be found on our YouTube channel
MOMBASA, Kenya, Jul 21 – The Second Lead Author Meeting of the Intergovernmental Panel on Climate Change (IPCC) Special Report on Climate Change and Cities taking place in Mombasa, Kenya, this week will advance the work on the First Order Draft (FOD) of the IPCC’s only special report in the seventh assessment cycle. The first of multiple review stages opens in October, when experts will have the initial opportunity to review and comment on the draft text.
The meeting in Mombasa from 21 to 25 July 2025, brings together nearly 100 selected authors from more than 50 countries. Scheduled for release in March 2027, the Special Report on Climate Change and Cities will be the first report delivered by the IPCC in the current cycle.
The drafting process for this Special Report has been underway since the First Lead Author Meeting in Osaka, Japan earlier this year. Selected authors have been developing the report based on the outline agreed by the 195-member government Panel during its 61st Session held in Sofia, Bulgaria from 27 July to 2 August 2024.
This IPCC meeting is hosted by the Kenyan State Department for Environment and Climate Change. It will bring together experts from the IPCC Working Group I (the physical science basis), Working Group II (impacts, adaptation and vulnerability), and Working Group III (mitigation of climate change), including researchers and practitioners from urban communities who have been selected by the Working Group I, II and III Bureaus to serve as Coordinating Lead Authors and Lead Authors on the report.
“We are grateful to be hosted by the Kenyan government and the city of Mombasa. A city – where people live, work and enjoy – that also has unique characteristics, such as having an ocean as its neighbor, a rich cultural blend and history, and is a popular tourist destination. As our authors draft the report, they know their dynamic exchange of ideas throughout the week will be surrounded by numerous urban topics and stakeholders they want to address. We look forward to this unique opportunity to engage with the beautiful city and its vibrant inhabitants.” said Bart van den Hurk, IPCC Working Group II Co-Chair.
The Special Report on Climate Change and Cities aims to provide a timely assessment of the latest science related to climate change and cities, including climate impacts and risks, as well as adaptation and mitigation solutions that can be taken to minimize the impacts and risks.
“African cities are vulnerable to the impacts of climate change, but they are also critical hubs for climate resilience and action. It is key that we contribute to the Special Report and engage with the assessment cycle to also develop insights that are crucial for decision making in the region, “said Cromwel Lukorito, a climate scientist at the University of Nairobi Department of Earth and Climate Sciences and IPCC Working Group II Vice-Chair, based in Nairobi, Kenya.
The author team of this Special Report comprises a diverse set of experts who participate as authors or review editors, including 13 experts from Africa.
There will be a Media Briefing about the ongoing work on the Special Report on Climate Change and Cities led by IPCC’s Working Group II from 8.30am to 9.00am (local time) on Monday, 21 July 2025 at the Prideinn Paradise Beach Resort and Spa, followed by the formal opening which is open to the media from 9.00 am to 10:00 am (local time).
For more information and interview requests for the IPCC experts participating in this meeting, please contact Woo Qiyun, Senior Communications Manager, IPCC Working Group II Technical Support Unit, media@ipccwg2.org.
Pan-African Regional Outreach Event (25-26 July 2025)
A Pan-African Regional Outreach Event in Support of the IPCC Process will be held at the Technical University of Mombasa (TUM) on 25-26 July 2025.
The Technical University of Mombasa is located along Tom Mboya Street, Mombasa, Kenya.
The Kenyan Government with support from the IPCC will host government and academic representatives from the five African sub-regions (North Africa, West Africa, East Africa, Southern Africa, and Central Africa) for a two-day outreach event with the aim to increase awareness and opportunities to contribute to the IPCC processes throughout the seventh assessment cycle and beyond.
Speakers from the IPCC Bureau include Working Group I Co-Chair Robert Vautard and Xiaoye Zhang, Working Group II Co-Chairs Winston Chow and Bart van den Hurk, Working Group III Co-Chair Şiir Kilkiş, and Working Group II Vice-Chair Cromwel Lukorito.
For more information about this event, please contact IPCC Head of Communications and Media Relations, Andrej Mahecic (amahecic@wmo.int) and IPCC Communications Officer, Melissa Walsh (mwalsh@wmo.int).
Notes for Editors
What is the IPCC?
The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.
Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, scientists and experts volunteer their time as IPCC authors to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.
The IPCC has three working groups: Working Group I, dealing with the physical science basis of climate change; Working Group II, dealing with impacts, adaptation and vulnerability; and Working Group III, dealing with the mitigation of climate change. It also has a Task Force on National Greenhouse Gas Inventories that develops methodologies for measuring emissions and removals.
IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency.
About the Seventh Assessment Cycle
Comprehensive scientific assessment reports are published every 5 to 7 years. The IPCC is currently in its seventh assessment cycle, which formally began in July 2023 with the elections of the new IPCC and Task Force Bureaus at the IPCC’s Plenary Session in Nairobi.
At its first Plenary Session in the seventh assessment cycle – the 60th Plenary Session in Istanbul, Türkiye, in January 2024 – the Panel agreed to produce in this cycle the three Working Group contributions to the Seventh Assessment Report (AR7), namely the Working Group I report on the Physical Science Basis, the Working Group II report on Impacts, Adaptation and Vulnerability and the Working Group III report on Mitigation of Climate Change. The Synthesis Report of the Seventh Assessment Report will be produced after the completion of the Working Group reports and released by late 2029.
During its 62nd Plenary Session held in Hangzhou, China, in February 2025, the Panel has agreed on the outlines of the three Working Group contributions to the Seventh Assessment Report (AR7).
The Panel decided already during the previous cycle to produce a Special Report on Climate Change and Cities and a Methodology Report on Short-lived Climate Forcers during AR7.. Scientists have also been asked to deliver a Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage.
At the IPCC’s 61st Plenary Session held in Sofia, Bulgaria, from 27 July to 2 August 2024, the Panel agreed upon the outlines for the Special Report on Climate Change and Cities scheduled for approval and publication in March 2027 and for the 2027 IPCC Methodology Report on Inventories for Short-lived Climate Forcers scheduled for publication in the second half 2027.
In addition, a revision of the 1994 IPCC Technical Guidelines on impacts and adaptation as well as adaptation indicators, metrics and guidelines, will be developed in conjunction with the Working Group II report and published as a separate product.
IPCC’s latest report, the Sixth Assessment Report, was completed in March 2023 with the release of its Synthesis Report, which provided direct scientific input to the First Global Stocktake process under the United Nations Framework Convention on Climate Change at COP28 in Dubai.
The Sixth Assessment Report comprises three Working Group contributions and a Synthesis Report. The Working Group I contribution Climate Change 2021: the Physical Science Basis was released on 9 August 2021. The Working Group II contribution, Climate Change 2022: Impacts, Adaptation and Vulnerability, was released on 28 February 2022. The Working Group III contribution, Climate Change 2022: Mitigation of Climate Change, was released on 4 April 2022 and the Synthesis Report on 20 March 2023. The Synthesis Report to the Sixth Assessment Report, distils and integrates the findings of the three Working Group assessments as well as the three Special Reports released in 2018 and 2019.
The special reports were on Global Warming of 1.5°C (October 2018.), Climate Change and Land (August 2019) and, the Ocean and Cryosphere in a Changing Climate (September 2019).
For more information visit www.ipcc.ch.
The website includes outreach materials including videos about the IPCC and video recordings from outreach events conducted as webinars or live-streamed events.
Most videos published by the IPCC can be found on our YouTube channel.
GENEVA, June 19 — The Intergovernmental Panel on Climate Change (IPCC) and the American Geophysical Union (AGU) announce access to the full library of AGU Publications for IPCC authors working on the Panel’s Seventh Assessment Report, or AR7.
“This landmark decision is an invaluable scientific boost for the IPCC’s ongoing work,” said IPCC Chair Jim Skea. “It will enable our authors from developing countries and those facing access barriers to enhance their scientific contributions to the upcoming reports of IPCC’s three Working Groups assessing the latest science related to climate change. We encourage other major scientific publishers to consider following suit at this critical time for climate science.”
As a non-profit scholarly publisher, AGU publishes 24 peer-reviewed high-impact journals and four active book series, including monographs, advanced-level textbooks, and technical manuals across the entire spectrum of Earth and space sciences. It also runs the Earth and Space Science Open Archive.
AGU journals publish research articles, letters, commentaries and other types of scholarly content within the fields of Earth and space sciences. Covering topics ranging from atmospheric science and oceanography to geophysics, planetary science, and climate change, AGU journals are an essential mode of information sharing and enterprise building for the global scientific community.
“IPCC Reports provide authoritative scientific consensus on climate change to a broad spectrum of key players, from government and community leaders to industries and advocacy organizations,” said AGU President Brandon Jones. “Opening AGU publications’ portfolio to the authors of the Seventh Assessment Report provides greater equitable access to critical research of the scientific community, which can be assessed, considered, and weighed when informing the final report.”
Following the Panel’s agreement in February on the outlines of the three Working Group contributions during its 62nd Session held in Hangzhou, China, the IPCC has now completed the call for nominations of experts to act as Coordinating Lead Authors, Lead Authors, or Review Editors for the three key Working Group contributions to IPCC’s Seventh Assessment Report.
Hundreds of experts in different scientific domains worldwide will be selected to volunteer their time and expertise to produce the new set of IPCC Reports. Author teams will reflect a range of scientific, technical, and socio-economic knowledge. Coordinating Lead Authors and Lead Authors will be responsible for drafting the different chapters of the Working Group contributions to the AR7 and, with the help of the Review Editors, revising those based on comments submitted during the two rounds of reviews by experts and governments.
IPCC author teams include experts from different regions to ensure geographic balance. The IPCC also seeks a balance in gender, as well as a balance between those authors with experience in working on IPCC Reports and those new to the process, including younger scientists.
The outlines of the three Working Group contributions to the AR7 were developed after a comprehensive scientific scoping meeting in December 2024 in Kuala Lumpur, Malaysia, before the Panel considered them and agreed upon them at the end of February.
For more information, contact:
IPCC Press Office, Email: ipcc-media@wmo.int;
Andrej Mahecic, +41 22 730 8516; Werani Zabula, +41 22 730 8120
AGU contact: Josh Weinberg, news@agu.org
Notes for Editors
What is the IPCC?
The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.
Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, scientists and experts volunteer their time as IPCC authors to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.
The IPCC has three working groups: Working Group I, dealing with the physical science basis of climate change; Working Group II, dealing with impacts, adaptation and vulnerability; and Working Group III, dealing with the mitigation of climate change. It also has a Task Force on National Greenhouse Gas Inventories that develops methodologies for measuring emissions and removals.
IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency.
What is AGU
The American Geophysical Union (www.agu.org) is a global community supporting more than half a million scientists, advocates, and professionals in Earth and space sciences. Through broad and inclusive partnerships, AGU aims to advance discovery and solution science that accelerate knowledge and create solutions that are ethical, unbiased and respectful of communities and their values. Our programs include serving as a scholarly publisher, convening virtual and in-person events and providing career support. We live our values in everything we do, such as our net zero energy renovated building in Washington, D.C. and our Ethics and Equity Center, which fosters a diverse and inclusive geoscience community to ensure responsible conduct.
About the Seventh Assessment Cycle
Comprehensive scientific assessment reports are published every 5 to 7 years. The IPCC is currently in its seventh assessment cycle, which formally began in July 2023 with the elections of the new IPCC and Task Force Bureaus at the IPCC’s Plenary Session in Nairobi.
At its first Plenary Session in the seventh assessment cycle – the 60th Plenary Session in Istanbul, Türkiye, in January 2024 – the Panel agreed to produce in this cycle the three Working Group contributions to the Seventh Assessment Report (AR7), namely the Working Group I report on the Physical Science Basis, the Working Group II report on Impacts, Adaptation and Vulnerability and the Working Group III report on Mitigation of Climate Change. The Synthesis Report of the Seventh Assessment Report will be produced after the completion of the Working Group reports and released by late 2029.
During its 62nd Plenary Session held in Hangzhou, China, in February 2025, the Panel has agreed on the outlines of the three Working Group contributions to the Seventh Assessment Report (AR7).
The Panel decided already during the previous cycle to produce a Special Report on Climate Change and Cities and a Methodology Report on Short-lived Climate Forcers during AR7.. Scientists have also been asked to deliver a Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage.
At the IPCC’s 61st Plenary Session held in Sofia, Bulgaria, from 27 July to 2 August 2024, the Panel agreed upon the outlines for the Special Report on Climate Change and Cities scheduled for approval and publication in March 2027 and for the 2027 IPCC Methodology Report on Inventories for Short-lived Climate Forcers scheduled for publication in the second half 2027.
In addition, a revision of the 1994 IPCC Technical Guidelines on impacts and adaptation as well as adaptation indicators, metrics and guidelines, will be developed in conjunction with the Working Group II report and published as a separate product.
IPCC’s latest report, the Sixth Assessment Report, was completed in March 2023 with the release of its Synthesis Report, which provided direct scientific input to the First Global Stocktake process under the United Nations Framework Convention on Climate Change at COP28 in Dubai.
The Sixth Assessment Report comprises three Working Group contributions and a Synthesis Report. The Working Group I contribution Climate Change 2021: the Physical Science Basis was released on 9 August 2021. The Working Group II contribution, Climate Change 2022: Impacts, Adaptation and Vulnerability, was released on 28 February 2022. The Working Group III contribution, Climate Change 2022: Mitigation of Climate Change, was released on 4 April 2022 and the Synthesis Report on 20 March 2023. The Synthesis Report to the Sixth Assessment Report, distils and integrates the findings of the three Working Group assessments as well as the three Special Reports released in 2018 and 2019.
The special reports were on Global Warming of 1.5°C (October 2018.), Climate Change and Land (August 2019) and, the Ocean and Cryosphere in a Changing Climate (September 2019).
For more information visit www.ipcc.ch.
The website includes outreach materials including videos about the IPCC and video recordings from outreach events conducted as webinars or live-streamed events.
Most videos published by the IPCC can be found on our YouTube channel.
SBSTA 62,Bonn, Germany, 17 June 2025
Thank you SBSTA Chair (SBSTA Chair, Adonia Ayebare)
Your Excellencies, distinguished delegates, colleagues and friends, ladies and gentlemen,
First of all, thank you for the invitation to deliver the keynote address at this 17th Meeting of the Research Dialogue.
As the Chair of the Intergovernmental Panel on Climate Change – the IPCC – I will also take this opportunity to bring you up to date on the Panel’s work since the seventh assessment cycle began almost two years ago.
It is somewhat ironical that recent IPCC reports have communicated the need for urgency in responding to the manifest risks posed by climate change. Because, as we move from one assessment cycle to another, there is an inevitable hiatus while we prepare our new reports. Where is our sense of urgency? It’s a fair question to ask. We indeed may appear to be the El Niňo of the scientific assessment world – appearing every two-to-seven years.
But unlike El Niňo, we know when our reports will start to appear. We also know their scope, and the key scientific issues and knowledge gaps that they will address. So, let me first of all set out where we are in terms of plans for the seventh cycle, then reflect more on scientific issues linked to attribution, different warming levels and aspects of temperature overshoot, the measurement of impacts and adaptation, and the treatment of sustainable development and equity issues. For a wider take on the Seventh Assessment Report – or AR7 – let me advertise tomorrow’s IPCC side event where representatives of the Working Groups and the Task Force on National Greenhouse Gas Inventories – the TFI – will be setting out their plans.
So, in terms of work under way [SLIDE 2] a Special Report on Climate Change and Cities and a Methodology Repot on Short Lived Climate Forcers have been scoped, the authors have been selected and the first Lead Authors meetings have been held. We plan our first and only special report of the cycle to be approved and released in less than two years, in early 2027 and the Methodology Report in late 2027.
The member governments have agreed upon the outlines of the three Working Group contributions to the AR7 at the Panel’s last plenary in Hangzhou China. We have yet to settle the precise timeline for their production, but they could start appearing in mid-2028, while the Synthesis Report that will conclude the entire cycle must be approved by late 2029.
Alongside the Working Group II report, revised and updated technical guidelines on the assessment of impacts and adaptation will be produced as a distinct product, with a special emphasis on metrics and indicators. And here’s another quick IPCC advert, this matter will be discussed in depth at the mandated event on Friday morning.
And finally, the Panel has yet to agree on the scope of two reports: a Methodology Report on Carbon Dioxide Removal and Carbon Capture and Storage, and the Synthesis Report. We have almost completed work on the Methodology Report in Hangzhou, but have some residual issues to resolve on carbon dioxide and water bodies. The Synthesis Report will be scoped later in the cycle.
Now, turning to the specific scientific topics I mentioned.
For each, I will first set out the state of knowledge from the Sixth Assessment Report, or AR6, then I will show how these issues and knowledge gaps will be treated in the forthcoming reports.
On attribution [SLIDE 3], the very first sentence of the Summary for Policymakers of the AR6 Synthesis Report is a relevant high-level statement: “Human activities, principally through emissions of greenhouse gases, have unequivocally caused global warming”. It couldn’t be clearer. We have high levels of confidence that some type of impacts can be attributed to human activities.
For example, we are highly confident [SLIDE 4] that human activities have caused observable increases in hot extremes. We have concluded that it is likely that human activities [SLIDE 5] are the main driver of the intensification of heavy precipitation. But we have lower confidence regarding human influence on agricultural and ecological drought [SLIDE 6]. And some of that lower confidence is due to lower levels of agreement in the assessed literature. The Seventh Assessment Report will address these lower confidence topics with a view, if it is supported by the evidence, to reaching robust conclusions.
But more work needs to be done to establish whether specific weather or climate events can be attributed to human activities. That’s why the forthcoming Working Group I report [SLIDE 7] will extend the attribution of large-scale changes in the climate system at the global and regional levels to the attribution of local changes and extremes such as tropical cyclones. Working Group I will explore cloud-resolving climate simulations down to the kilometre scale, the greater use of climate emulators and the use of artificial intelligence. Working Group II will extend the assessment of attribution to observed and projected impacts.
Turning to current and projected levels of warming [SLIDE 8], the World Meteorological Organisation, one of our parent organisations, has established that the annually averaged global mean near-surface temperature for the single year of 2024 was 1.55 °C above pre-industrial levels. This does not imply that the 1.5 °C warming level mentioned in the Paris long-term temperature goal has been breached. That is based on the mid-point of a 20-year long-run average. Estimates of current long-run warming averaged over multiple years vary between 1.34 and 1.41 ºC. But there is a 70% chance that average warming over the years 2025-2029 will exceed 1.5 ºC.
Looking forward, a communication challenge remains. There are plausible temperature pathways that can both “exceed” and “limit” warming to 1.5 °C [SLIDE 9]. This slide, based on work by Carbon Brief, shows that a pathway can exceed a given warming level in the short-medium term but still limit warming to that same level by the end of the century.
But to be clear, GHG emissions are still rising, and we are not on track to limit warming to 1.5 °C. This slide [SLIDE 10], from our other parent organisation, UNEP, is based on methods used in the IPCC Sixth Assessment Report combined with updated information. It shows that, even if all the current National Determined Contributions and net zero pledges were to be met in full, warming would at best be just below 2 °C by the end of the century.
The consequences and means of managing so-called overshoot – which means exceeding a specified global warming level, before returning to or below that level through net removals of CO2 from the atmosphere – will be covered in the Seventh Assessment Report. Here, there are significant knowledge gaps. What irreversible impacts, such as species loss, may we suffer if we surpass a given threshold? How will the Earth system, including the biosphere, respond to lower CO2 concentrations and a cooling climate? How well do adaptation options planned today function under conditions at higher levels of global warming?
What techniques and approaches can plausibly result in removals of CO2 from the atmosphere at scale? [SLIDE 11] What might be the wider social, economic and ecological consequences of deploying these options? In the sixth cycle, Working Group III, developed a taxonomy of carbon dioxide removal options, but more exploration is needed.
The scientific challenges cut across all of the IPCC Working Groups. In the seventh cycle, the Working Group I report will be assessing Earth system responses to overshoot [SLIDE 12]. Working Group III will assess a wide range of carbon dioxide removal methods [SLIDE 13]. Working Group II will assess the implications for human and natural systems of deploying these options. And the TFI will be developing methods for estimating emissions and removals associated with Carbon Dioxide Removal.
The seventh cycle will have an enhanced emphasis on impacts and adaptation [SLIDE 14]– though we will certainly not neglect mitigation. Compared to mitigation, adaptation to climate change has lacked the means to measure progress. Adaptation actions are more difficult to separate from wider infrastructure investment and patterns of development. We will shortly start work on revising and updating Technical Guidelines on assessing impacts and adaptation to help to fill that gap, and support the Global Goal on Adaptation. The guidelines will encompass goal setting, risk assessment, planning, implementation, and learning, monitoring and evaluation. And the Working Group II report will, for the first time include a chapter on finance, an indispensable precondition for successful adaptation.
And, overall, we will be paying much more attention to the role that climate action plays in advancing and promoting sustainable development, including and beyond the Sustainable Development Goals, or SDGs. In the sixth cycle [SLIDE 15], we showed that those who are most vulnerable to climate change have generally contributed the least of GHG emissions. We also showed [SLIDE 16] that across a range of human and natural systems, options for climate action, both adaptation and mitigation, have more synergies than trade-offs with the SDGs.
In the seventh assessment cycle, there will be a substantial treatment of equity, just transition and the distributional consequences of climate action across the Working Group contributions. Working Group II has a bullet point that is common to all regional and thematic chapters concerning the distributional nature of effects, covering human rights, equity and justice, and impacts on various vulnerable groups. There will also be a chapter devoted to responses to losses and damages disproportionately experienced by vulnerable communities and groups. It will also include ways of categorising and measuring losses and damages.
Working Group III [SLIDE 17] has an entire chapter devoted to sustainable development and mitigation. This comprehensive chapter will include distributional consequences for mitigation actions, synergies and trade-offs with sustainable development objectives, and implications for biodiversity and ecosystems, conservation, and restoration. In addition, the chapter addressing “futures”, which will contain the assessment of published scenarios at different temporal and geographical scales, will focus on both sustainable development and mitigation.
Ladies and gentlemen,
The relevant scientific communities are already working on these topics, and more. So, what does IPCC add? [SLIDE 18] Let me emphasise our unique capacity to assess and synthesise the vast and exponentially growing body of knowledge on climate change, its impacts, and available responses. Every individual scientific paper matters, but it’s only when individual papers are placed in the context of the overall body of evolving knowledge that the entire picture becomes clear. We know how to establish the level of confidence in key findings, draw out different perspectives and strands of thinking, and identify knowledge gaps. The findings in our existing reports are durable, and can be updated by others using methods from approved IPCC reports in light of new and emerging data. And, let me underline that the IPCC findings that are most durable actually concern climate action. I recall our message that every fraction of a degree of warming matters. The many adaptation and mitigation response options we have identified, explored and laid out for policymakers can be implemented now, and in the future, at any level of warming.
And, finally, and very importantly, we forge consensus between representatives of the scientific world and policymakers, the prerequisite for informed and effective policy-making.
It’s a unique and highly successful model – our rigorous assessment methods have paid off in terms of scientific credibility and user acceptance. Indeed, IPCC methods have been used as a model by other bodies, including IPBES. The IPCC – as well as our colleagues in the policy world – faces unprecedented and complex challenges in a turbulent world. But we are confident that our tried and tested ways of working will allow us to rise to these challenges and deliver clear, authoritative, timely and actionable findings for policymakers and other decision-makers over the next few years.
Thank you.
The Intergovernmental Panel on Climate Change is calling for nominations of participants to two three-day co-located workshops to be held in the first quarter of 2026:
This follows the Panel’s agreement of a proposal made by the IPCC Chair with the support of a drafting group, during its 62nd Session held in Hangzhou, China ( IPCC-LXII/Doc. 7, Rev.1 ).
The scope of the Workshop on Engaging Diverse Knowledge Systems is to consider what systems of knowledge the IPCC can engage with and assess within the framework of existing principles and procedures.
The scope of the Workshop on Methods of Assessment is to consider the means by which such knowledge systems can be assessed.
Both workshops will also consider the extent to which such means of synthesis and assessment may be conducted by the IPCC itself or by the knowledge holders and research communities who generate the literature on which the IPCC relies.
Nominations for the workshops are welcome from knowledge holders, practitioners, and scientists with the relevant expertise.
For the Workshop on Engaging Diverse Knowledge Systems, this would be expertise on the application and interpretation of diverse forms of knowledge, including:
For the Workshop on Methods of Assessment, expertise would include:
Nominations are particularly encouraged from Indigenous Peoples representatives, those whose expertise bridges the two workshops, and those with relevant experience from other global environmental assessments.
Those interested in being nominated as participants should contact their relevant IPCC Focal Point. A list of focal points for IPCC member governments and observer organizations is available here.
Nominations are submitted through a dedicated online nomination tool by focal points in governments and accredited observer organizations, as well as IPCC Bureau members. Governments, observer organizations, and IPCC Bureau members have to submit their nominations by Wednesday 16 July 2025 (midnight CEST).
More information on the nomination process is here.
For more information, contact:
IPCC Press Office, Email: ipcc-media@wmo.int;
Andrej Mahecic, +41 22 730 8516; Werani Zabula, +41 22 730 8120.
With great sadness, the Intergovernmental Panel on Climate Change (IPCC) has learned of the death of Dr Mannava V.K. Sivakumar, who passed away on 30 March 2025 in Hyderabad, India.
Dr Mannava Sivakumar, fondly known as Shiv, was the Acting Secretary of the IPCC from January to June 20I6, the early stages of the sixth assessment cycle. During this time, Dr Sivakumar oversaw the organization of the 43rd Session of the IPCC, where the Panel decided which Special Reports it would work on in the sixth cycle.
He was the Director of the Climate Prediction and Adaptation branch of the World Meteorological Organization (WMO) from 2010 to 2012 when he retired. From 1998 to 2010, he was the Head of WMO’s Agricultural Meteorological Division.
Dr Sivakumar received the 2007 International Service in Agronomy Award of the American Society of Agronomy, which recognizes outstanding contributions in research, teaching, extension, or administration made outside of the USA by an active agronomist.
Before joining WMO he worked at the International Crops Research Institute for Semi-Arid Tropics (ICRISAT) where his highest position was Principal Agricultural Climatologist at ICRISAT’s Sahelian Centre in Niamey, Niger.
Dr Sivakumar was born on 30th August 1950 in Guntur, Andhra Pradesh, India. In 1970, he graduated from the Agriculture College, Bapatla, where he had studied since 1966. He completed his Master’s degree at the Indian Agricultural Research Institute in New Delhi in 1972 and obtained his Ph.D. from Iowa State University in 1977.
GENEVA, Mar 24 – Over 100 experts from more than 40 countries are meeting in Bilbao, Spain this week for the first meeting of authors and review editors of the 2027 IPCC Methodology Report on Inventories for Short-lived Climate Forcers (SLCF). This will be the first methodology report released by IPCC in the seventh assessment cycle and it is being prepared by the Task Force on National Greenhouse Gas Inventories (TFI).
The 2027 Methodology Report is expected to provide guidance on anthropogenic emissions for Short-lived Climate Forcers, not including secondary human-induced substances.
“The report aims to provide clear guidance on measuring emissions from key short-lived climate forcing substances, including nitrogen oxides, carbon monoxide, and others, which significantly contribute to global and regional air quality and climate change,” said Takeshi Enoki, one of the Co-Chairs of the TFI.
This week´s meeting in Bilbao marks the beginning of the drafting process of this Methodology Report which is scheduled to be released in March 2027. The Coordinating Lead Authors and Lead Authors at this meeting will start developing the report based on the outline agreed by the Panel during its 61st Session held in Sofia, Bulgaria in July/August 2024.
“We are excited to begin work on this report with a diverse group of experts selected from the 394 nominations we received. Their work will be important for enhancing the data used in climate models,” said Mazhar Hayat, TFI Co-Chair.
Following the Panel’s 61st Session, the IPCC called for nominations of experts to act as Authors and Review Editors of the 2027 Methodology Report in August 2024. The TFI Bureau, also known as the Task Force Bureau, in consultation with relevant Working Group Co-Chairs selected the report’s Coordinating Lead Authors, Lead Authors and Review Editors. In their selection, they considered scientific and technical expertise, geographical and gender balance in line with Appendix A to the Principles Governing IPCC Work.
A preliminary list of the Authors for the 2027 Methodology Report is available here.
Following the Lead Author Meeting, there will be an outreach event hosted by the Spanish Climate Change Office at the Bizkaia Aretoa in Bilbao on 27 March 2025. More details on the event are available here.
For more information, contact:
IPCC Press Office, Email: ipcc-media@wmo.int;
Andrej Mahecic, +41 22 730 8516; Werani Zabula, +41 22 730 8120.
Notes for Editors
What is the IPCC?
The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.
Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, scientists and experts volunteer their time as IPCC authors to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.
The IPCC has three working groups: Working Group I, dealing with the physical science basis of climate change; Working Group II, dealing with impacts, adaptation and vulnerability; and Working Group III, dealing with the mitigation of climate change. It also has a Task Force on National Greenhouse Gas Inventories that develops methodologies for measuring emissions and removals.
IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency.
About the Seventh Assessment Cycle
Comprehensive scientific assessment reports are published every 5 to 7 years. The IPCC is currently in its seventh assessment cycle, which formally began in July 2023 with the elections of the new IPCC and Task Force Bureaus at the IPCC’s Plenary Session in Nairobi.
At its first Plenary Session in the seventh assessment cycle – the 60th Plenary Session in Istanbul, Türkiye, in January 2024 – the Panel agreed to produce in this cycle the three Working Group contributions to the Seventh Assessment Report (AR7), namely the Working Group I report on the Physical Science Basis, the Working Group II report on Impacts, Adaptation and Vulnerability and the Working Group III report on Mitigation of Climate Change. The Synthesis Report of the Seventh Assessment Report will be produced after the completion of the Working Group reports and released by late 2029.
During its 62nd Plenary Session held in Hangzhou, China, in February 2025, the Panel has agreed on the outlines of the three Working Group contributions to the Seventh Assessment Report (AR7).
The Panel decided already during the previous cycle to produce a Special Report on Climate Change and Cities and a Methodology Report on Short-lived Climate Forcers during AR7.. Scientists have also been asked to deliver a Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage.
At the IPCC’s 61st Plenary Session held in Sofia, Bulgaria, from 27 July to 2 August 2024, the Panel agreed upon the outlines for the Special Report on Climate Change and Cities scheduled for approval and publication in March 2027 and for the 2027 IPCC Methodology Report on Inventories for Short-lived Climate Forcers scheduled for publication in the second half 2027.
In addition, a revision of the 1994 IPCC Technical Guidelines on impacts and adaptation as well as adaptation indicators, metrics and guidelines, will be developed in conjunction with the Working Group II report and published as a separate product.
IPCC’s latest report, the Sixth Assessment Report, was completed in March 2023 with the release of its Synthesis Report, which provided direct scientific input to the First Global Stocktake process under the United Nations Framework Convention on Climate Change at COP28 in Dubai.
The Sixth Assessment Report comprises three Working Group contributions and a Synthesis Report. The Working Group I contribution Climate Change 2021: the Physical Science Basis was released on 9 August 2021. The Working Group II contribution, Climate Change 2022: Impacts, Adaptation and Vulnerability, was released on 28 February 2022. The Working Group III contribution, Climate Change 2022: Mitigation of Climate Change, was released on 4 April 2022 and the Synthesis Report on 20 March 2023. The Synthesis Report to the Sixth Assessment Report, distils and integrates the findings of the three Working Group assessments as well as the three Special Reports released in 2018 and 2019.
The special reports were on Global Warming of 1.5°C (October 2018.), Climate Change and Land (August 2019) and, the Ocean and Cryosphere in a Changing Climate (September 2019).
For more information visit www.ipcc.ch.
The website includes outreach materials including videos about the IPCC and video recordings from outreach events conducted as webinars or live-streamed events.
Most videos published by the IPCC can be found on our YouTube channel.