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IPCC Sixth Assessment Report (AR6)
The Sixth Assessment Report (AR6) comprises three Working Group contributions: Working Group I (the physical science basis), Working Group II (impacts, adaptation and vulnerability) and Working Group III (mitigation) and a Synthesis Report.
The Synthesis Report integrates the three Working Group reports as well as the findings from the three cross-Working Group Special Reports prepared during this assessment cycle: Special Report on Global Warming of 1.5ºC (SR15, October 2018), Special Report on Climate Change and Land (SRCCL, August 2019) and Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC, September 2019).
During the AR6 cycle the IPCC also updated its methodologies with the 2019 Refinement to the 2006 Guidelines on National Greenhouse Gas Inventories (May 2019).
Report structure overview AR6
| Synthesis report SYR (2023) | |||||||
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| Working group reports | Special reports | Methodology | |||||
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| WGI (2021) | WGII (2022) | WGIII (2022) | SR1.5 (2018) | SRCCL (2019) | SROCC (2019) | Updates (2019) | |
Climate Change 2023: AR6 Synthesis Report
A Report of the Intergovernmental Panel on Climate Change
The Synthesis Report integrates the three Working Group reports as well as the findings from the three cross-Working Group Special Reports prepared during this assessment cycle.
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Contents
| Chapter | Chapter title | Link |
|---|---|---|
| Front matter | Bibliographic data, Foreword, Preface | n/a |
| SPM | Summary for Policy Makers | Link |
| Longer Report | Sections 1-4 | Link |
| Annex | Annexes I-V, Index | n/a |
Climate Change 2021 – The Physical Science Basis (WGI)
Working group I report
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Contents
| Chapter | Chapter title | Link |
|---|---|---|
| Front matter | Bibliographic data, Foreword, Preface, Dedication | n/a |
| SPM | Summary for Policy Makers | Link |
| TS | Technical Summary | Link |
| Chapter 1 | Framing, Context, and Methods | Link |
| Chapter 2 | Changing State of the Climate System | Link |
| Chapter 3 | Human Influence on the Climate System | Link |
| Chapter 4 | Future Global Climate: Scenario-based Projections and Near-term Information | Link |
| Chapter 5 | Global Carbon and Other Biogeochemical Cycles and Feedbacks | Link |
| Chapter 6 | Short-lived Climate Forcers | Link |
| Chapter 7 | The Earth’s Energy Budget, Climate Feedbacks and Climate Sensitivity | Link |
| Chapter 8 | Water Cycle Changes | Link |
| Chapter 9 | Ocean, Cryosphere and Sea Level Change | Link |
| Chapter 10 | Linking Global to Regional Climate Change | Link |
| Chapter 11 | Weather and Climate Extreme Events in a Changing Climate | Link |
| Chapter 12 | Climate Change Information for Regional Impact and for Risk Assessment | Link |
| Annex | Annexes I-X, Index | n/a |
Climate Change 2022 - Impacts, Adaptation and Vulnerability (WGII)
Working group II report
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Contents
| Chapter | Chapter title | Link |
|---|---|---|
| Front matter | Bibliographic data, Foreword, Preface, Dedication | n/a |
| SPM | Summary for Policy Makers | Link |
| TS | Technical Summary | Link |
| Chapter 1 | Point of Departure and Key Concepts | Link |
| Chapter 2 | Terrestrial and Freshwater Ecosystems and Their Services | Link |
| Chapter 3 | Oceans and Coastal Ecosystems and Their Services | Link |
| Chapter 4 | Water | Link |
| Chapter 5 | Food, Fibre and Other Ecosystem Products | Link |
| Chapter 6 | Cities, Settlements and Key Infrastructure | Link |
| Chapter 7 | Health, Wellbeing and the Changing Structure of Communities | Link |
| Chapter 8 | Poverty, Livelihoods and Sustainable Development | Link |
| Chapter 9 | Africa | Link |
| Chapter 10 | Asia | Link |
| Chapter 11 | Australasia | Link |
| Chapter 12 | Central and South America | Link |
| Chapter 13 | Europe | Link |
| Chapter 14 | North America | Link |
| Chapter 15 | Small Islands | Link |
| Cross-chapter Paper 1 | Biodiversity Hotspots | Link |
| Cross-chapter Paper 2 | Cities and Settlements by the Sea | Link |
| Cross-chapter Paper 3 | Deserts, Semiarid Areas and Desertification | Link |
| Cross-chapter Paper 4 | Mediterranean Region | Link |
| Cross-chapter Paper 5 | Mountains | Link |
| Cross-chapter Paper 6 | Polar Regions | Link |
| Cross-chapter Paper 7 | Tropical Forests | Link |
| Chapter 16 | Key Risks across Sectors and Regions | Link |
| Chapter 17 | Decision-Making Options for Managing Risk | Link |
| Chapter 18 | Climate Resilient Development Pathways | Link |
| Annex | Annexes I-V, Index | n/a |
Climate Change 2022 - Mitigation of Climate Change (WGIII)
Working group III report
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Contents
| Chapter | Chapter title | Link |
|---|---|---|
| Front matter | Bibliographic data, Foreword, Preface, In Memoriam | n/a |
| SPM | Summary for Policy Makers | Link |
| TS | Technical Summary | Link |
| Chapter 1 | Introduction and Framing | Link |
| Chapter 2 | Emissions Trends and Drivers | Link |
| Chapter 3 | Mitigation Pathways Compatible with Long-term Goals | Link |
| Chapter 4 | Mitigation and Development Pathways in the Near to Mid-term | Link |
| Chapter 5 | Demand, Services and Social Aspects of Mitigation | Link |
| Chapter 6 | Energy Systems | Link |
| Chapter 7 | Agriculture, Forestry and Other Land Uses (AFOLU) | Link |
| Chapter 8 | Urban Systems and Other Settlements | Link |
| Chapter 9 | Buildings | Link |
| Chapter 10 | Transport | Link |
| Chapter 11 | Industry | Link |
| Chapter 12 | Cross-sectoral Perspectives | Link |
| Chapter 13 | National and Sub-national Policies and Institutions | Link |
| Chapter 14 | International Cooperation | Link |
| Chapter 15 | Investment and Finance | Link |
| Chapter 16 | Innovation, Technology Development and Transfer | Link |
| Chapter 17 | Accelerating the Transition in the Context of Sustainable Development | Link |
| Annex | Annexes I-VI,Index | n/a |
Global Warming of 1.5°C
Special report
An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty
Contents
| Chapter | Chapter title | Link |
|---|---|---|
| Front matter | Bibliographic data, Foreword, Preface | n/a |
| SPM | Summary for Policy Makers | Link |
| TS | Technical Summary | tba |
| Chapter 1 | Framing and Context | Link |
| Chapter 2 | Mitigation Pathways Compatible with 1.5°C in the Context of Sustainable Development | Link |
| Chapter 3 | Impacts of 1.5ºC Global Warming on Natural and Human Systems | Link |
| Chapter 4 | Strengthening and Implementing the Global Response | Link |
| Chapter 5 | Sustainable Development, Poverty Eradication and Reducing Inequalities | Link |
| Annex | Annexes I-IV, Index | n/a |
Climate Change and Land
Special report
An IPCC Special Report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems
Go to report landing page
Contents
| Chapter | Chapter title | Link |
|---|---|---|
| Front matter | Bibliographic data, Foreword, Preface | n/a |
| SPM | Summary for Policy Makers | Link |
| TS | Technical Summary | tba |
| Chapter 1 | Framing and context | Link |
| Chapter 2 | Land–climate interactions | Link |
| Chapter 3 | Desertification | Link |
| Chapter 4 | Land degradation | Link |
| Chapter 5 | Food security | Link |
| Chapter 6 | Interlinkages between desertification, land degradation, food security and greenhouse gas fluxes: Synergies, trade-offs and integrated response options | Link |
| Chapter 7 | Risk management and decision-making in relation to sustainable development | Link |
| Annex | Annexes I-IV, Index | n/a |
The Ocean and Cryosphere in a Changing Climate
Special report
Special Report of the Intergovernmental Panel on Climate Change
Go to report landing page
Contents
| Chapter | Chapter title | Link |
|---|---|---|
| Front matter | Bibliographic data, Foreword, Preface | n/a |
| SPM | Summary for Policy Makers | Link |
| TS | Technical Summary | Link |
| Chapter 1 | Framing and Context of the Report | Link |
| Chapter 2 | High Mountain Areas | Link |
| Chapter 3 | Polar Regions | Link |
| Chapter 4 | Sea Level Rise and Implications for Low-Lying Islands, Coasts and Communities | Link |
| Chapter 5 | Global Carbon and Other Biogeochemical Cycles and Feedbacks | Link |
| Chapter 6 | Extremes, Abrupt Changes and Managing Risks | Link |
| Cross-Chapter Box 9 | Integrative Cross-Chapter Box on Low-lying Islands and Coasts | Link |
| Annex | Annexes I-IV, Index | n/a |