The Summary for Policymakers provides a high-level summary of the current state of the climate, how it is changing, the role of human influence, and possible climate futures.
The Technical Summary provides a synthesis of the key findings of the Report and serves as a bridge between the Summary for Policymakers and the chapters of the full report.
The 13 chapters of the Working Group I report provide a comprehensive assessment of the current evidence on the physical science of climate change.
The Frequently Asked Questions explain important aspects of the report for a broad audience. They are related to the specific Chapters where they appear, but can be relevant to multiple Chapters.
These outreach products provide an entry point for information relevant to regions and sectors. They are fully traceable to the underlying report and Interactive Atlas.
The novel AR6 WGI Interactive Atlas allows for a flexible spatial and temporal analysis of both data-driven climate change information and assessment findings.
Chapter 1 introduces the WGI contribution to AR6, its framing and context, and the methods used in the report.
Chapter 2 provides evidence for large-scale past changes in selected components of the climate system.
Chapter 3 assesses human influence on the climate system and evaluates climate models on large scales.
Chapter 4 assesses simulations of future global climate change over the near term, mid- to long term, and out to year 2300.
Chapter 5 identifies biogeochemical feedbacks with potentially significant climatic effects.
Chapter 6 discusses the evolution of reactive compounds and their effects on climate and global air quality.
Chapter 7 assesses the major physical processes affecting the evolution of Earth’s energy budget and the associated changes in temperature and the climate system.
Chapter 8 explores the changing water cycle and its sensitivity to multiple drivers.
Chapter 9 assesses the physical processes underlying global and regional changes in the ocean, cryosphere and sea level.
Chapter 10 assesses the foundations of how regional climate information is distilled from multiple, sometimes contrasting, lines of evidence.
Chapter 11 assesses observed changes in weather and climate extremes, their attribution to human influence, and future projections at global warming levels of +1.5°C, +2°C and +4°C.
Chapter 12 assesses the climate information relevant to regional impact and risk assessment.
The Atlas provides a region-by-region assessment of climate change and includes an innovative online tool, the Interactive Atlas.