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From the Intergovernmental Panel on Climate Change

The Intergovernmental Panel on Climate Change (IPCC) has been established by WMO and UNEP to assess scientific, technical and socio- economic information relevant for the understanding of climate change, its potential impacts and options for adaptation and mitigation. It is currently finalizing its Fourth Assessment Report "Climate Change 2007". The reports by the three Working Groups provide a comprehensive and up-to-date assessment of the current state of knowledge on climate change. The Synthesis Report integrates the information around six topic areas. More
Working Group II  "Impacts, Adaptation and Vulnerability"
See chapters outline
 Distribution of final draft report 22 December 2006
    Letter to governments - comments on SPM invited by
    16 February 2007
    Correction
Acceptance and approval  at the 8th Session of
    Working Group II, 2-5 April 2007, Brussels, Belgium
    Information for participants
Release: 6 April 07 in Brussels, additional regional
    briefings on 10 April 07, venues to be announced soon
Working Group III  "Mitigation of Climate Change"
See chapters outline
Distribution of final draft report 12 Feb  2007
    Letter to governments - comments on SPM invited by
    6 April 2007
Acceptance and approval  at the 9th Session of
    Working Group III, 30 April - 3 May 2007
    Bangkok, Thailand
    Information for participants
Release: 4 May 2007

The Synthesis Report (SYR)
See topics outline
Review by governments and experts
    21 May - 12 July 2007
Adoption and approval at the 27th Session of the
    IPCC, 12-16 November 2007, Valencia, Spain
The Third Assessment Report and other recent IPCC Special Reports
Third Assessment Report (TAR)
"Climate Change 2001"
The Scientific Basis
Impacts, Adaptation and Vulnerability
Mitigation
Synthesis Report Full report and
   Summaries in UN languages
Graphics and figures 
Carbon Dioxide Capture and Storage
Full report and Summary for
    policymakers in UN languages

Graphics and figures 

Webcast of press conference 
Safeguarding the ozone layer
Full report and Summary for
    policymakers in UN languages
 Graphics and figures
Other IPCC Special Reports and Technical Papers 
Information for Press

WG2 Release
 Press Conference on 6 April 07
    in Brussels
More info + Info about WG2 authors
Download the video webcast of the
    press conference in Brussels
    (audio only version)
 Download SUMMARY FOR POLICYMAKERS

WG3 Release
 Press Conference on 4 May 07 in Bangkok

WG1 Release
2 Feb 07 Press Information Note
Download SUMMARY FOR POLICYMAKERS
 Download the webcast of the Press Conference
Presentations of the AR4
Global Ministerial Environment
   Forum and UNEP GC-24
   Nairobi, 6 February 2007
Information for Authors
 Finalizing graphics and maps for a scientific report
    Graphics manual and information about support for
    graphics work
Guidance Notes for Lead Authors of the IPCC Fourth
    Assessment Report on Addressing Uncertainties
Working Group I "The Physical Science Basis"
See chapters outline
 Download the report's Summary for Policymakers released on 2 February 2007
Other ongoing IPCC activities
26th Session of the IPCC
4 May 2007, Bangkok, Thailand
Letter of invitation and documentation
Information for participants
Docs. 2, 4, 5, 6, 7, 8, INFs. 1 & 2 available now
(see also 9th Session of Working Group 3)

Further work by the IPCC on Emission Scenarios 

Letter to the scientific community requesting information
     regarding activities in scenario development
    Letter
    Attachment I and II

IPCC-25 Decision on further work of the IPCC on
   Emission Scenarios
Future work programme of the IPCC Task
   Force on National Greenhouse Gas
   Inventories TFI/NGGIP
    Scoping meeting, Geneva, 22-24 January 2007
Information for participants 
2006 IPCC Guidelines for National
   Greenhouse Gas Inventories
Other IPCC Methodology Reports