Papers of the Intergovernmental Panel on Climate Change

From the collections of Harvard Library

Fourth Assessment Report (AR4):
Working Group I (2002-2007)

Draft Chapters and Review Comments

Browse the Documents

Search the AR4 documents in this Harvard Library collection. These documents were used to prepare Climate Change 2007 - The Physical Science Basis. These are large files which may take a long time to download and view.

First Order Draft [August 15, 2005]
Contains text of all chapters		 Second Order Draft [March 3, 2006]
Contains text of all chapters
Chapter 1: Historical Overview of Climate Change Science
Comments on the First-Order Draft Chapter 1 Comments on the Second-Order Draft Chapter 1
Chapter 2: Changes in Atmospheric Constituents and in Radiative Forcing
Comments on the First-Order Draft Chapter 2 Comments on the Second-Order Draft Chapter 2
Chapter 3: Observations: Surface and Atmospheric Climate Change
Comments on the First-Order Draft Chapter 3 Comments on the Second-Order Draft Chapter 3
Chapter 4: Observations: Changes in Snow, Ice and Frozen Ground
Comments on the First-Order Draft Chapter 4 Comments on the Second-Order Draft Chapter 4
Chapter 5: Observations: Oceanic Climate Change and Sea Level
Comments on the First-Order Draft Chapter 5 Comments on the Second-Order Draft Chapter 5
Chapter 6: Palaeoclimate
Comments on the First-Order Draft Chapter 6 Comments on the Second-Order Draft Chapter 6
Chapter 7: Couplings Between Changes in the Climate System and Biogeochemistry
Comments on the First-Order Draft Chapter 7 Comments on the Second-Order Draft Chapter 7
Chapter 8: Climate Models and their Evaluation
Comments on the First-Order Draft Chapter 8 Comments on the Second-Order Draft Chapter 8
Chapter 9: Understanding and Attributing Climate Change
Comments on the First-Order Draft Chapter 9 Comments on the Second-Order Draft Chapter 9
Chapter 10: Global Climate Projections
Comments on the First-Order Draft Chapter 10 Comments on the Second-Order Draft Chapter 10
Chapter 11: Regional Climate Projections
Comments on the First-Order Draft Chapter 11 Comments on the Second-Order Draft Chapter 11

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