The IPCC Fifth Assessment Report (AR5) will provide a clear view of the current state of scientic knowledge relevant to climate change.
It comprises three Working Group (WG) reports and a Synthesis Report (SYR).
The Full Report of the Working Group I (WGI) contribution to AR5 - Climate Change 2013: The Physical Science Basis was launched on 30 January 2014 at the International Environment House, during an event organized by the Geneva Environment Network Secretariat in cooperation with the IPCC Secretariat. It provides a comprehensive assessment of the physical science basis of climate change in 14 chapters, supported by a number of annexes and supplementary material.
Welcome and introduction Jan Dusik, Acting Director, UNEP Regional Office for Europe
Overview of progress and timeline for AR5 Renate Christ, Secretary, IPCC (moderator)
Key messages and issues arising from the Report Thomas Stocker, Co-Chair, IPCC Working Group I WGI AR5
Atlas of climate projections and other regional information Gian-Kasper Plattner, Head of the WGI Technical Support Unit
Question & answer session moderated by Renate Christ Following questions and remarks from Ecuador, Egypt, Finland, France, Romania, UNEP, WWF, and other participants, speakers provided additional information on various topics, including the 2°C scenarios, the points of non consensus, plans to target policy-makers, ambitious messages to deliver to our leaders, work done on energy storage in the oceans and co2 storage, deadline of scenarios, regional maps and scenarios, links with IPBES, differences with previous report, how sceptic studies have been taken into consideration.
Front Matter 0.8MB
Summary for Policymakers 2.3MB
Observations: Atmosphere and Surface 38.3MB (Supplementary Material 1.5MB)
Observations: Ocean 48.3MB
Observations: Cryosphere 12.8MB (Supplementary Material 0.4MB)
Information from Paleoclimate Archives 10.7MB
Carbon and Other Biogeochemical Cycles 23.8MB (Supplementary Material 4MB)
Clouds and Aerosols 19.2MB (Supplementary Material 0.1MB)
Anthropogenic and Natural Radiative Forcing 18.9MB (Supplementary Material 15.9MB)
Evaluation of Climate Models 24.6MB
Detection and Attribution of Climate Change: from Global to Regional 10.4MB (Supplementary Material 1.3MB)
Near-term Climate Change: Projections and Predictability 14.1MB
Long-term Climate Change: Projections, Commitments and Irreversibility 36.3MB
Sea Level Change 32.9MB (Supplementary Material 0.1MB)
Climate Phenomena and their Relevance for Future Regional Climate Change 10.6MB (Supplementary Material 1.9MB)
Annex I: Atlas of Global and Regional Climate Projections 44.7MB
Supplementary Material: RCP2.6, RCP4.5, RCP6.0, RCP8.5
Annex II: Climate System Scenario Tables 1.5MB
Annex III: Glossary 0.4MB
Annex IV: Acronyms 0.1MB
Annex V: Contributors to the WGI Fifth Assessment Report 0.2MB
Annex VI: Expert Reviewers of the WGI Fifth Assessment Report 0.5MB
The designations employed and the presentation of material on maps do not imply the expression of any opinion whatsoever on the part of the Intergovernmental Panel on Climate Change concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
Changes to the Underlying Scientific/Technical Assessment (IPCC-XXVI/Doc.4) 0.2MB
List of Substantive Edits (30 January 2014) 0.5MB
Errata 0.3MB (Updated 12/02/2014)
Full Report (375MB)