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Intergovernmental Panel on Climate Change Papers; IPCC Fourth Assessment Report Papers: Working Group I, The Physical Science Basis of Climate Change, 2005-2007; Expert and Government Review Expert and Government Review Comments on the Second-Order Draft, Technical Summary Comments. ESPP IPCCAR4WG1. Environmental Science and Public Policy Archives. Harvard College Library, Cambridge, Mass. page 8. 8

The body of the report says that only “projections” - not “predictions” - are possible. [Richard Courtney (Reviewer’s comment ID #: 49-40)] TS-40 A 3:28 3:29 This parenthetic definition of the climate system excludes (unfrozen) soils and rivers of the Not practical to list each of the many continents.

 

Intergovernmental Panel on Climate Change Papers; IPCC Fourth Assessment Report Papers: Working Group I, The Physical Science Basis of Climate Change, 2005-2007; Expert and Government Review Expert and Government Review Comments on the Second-Order Draft, Technical Summary Comments. ESPP IPCCAR4WG1. Environmental Science and Public Policy Archives. Harvard College Library, Cambridge, Mass. page 14. 14

[2.3] [Richard Courtney (Reviewer’s comment ID #: 49-44)] TS-87 A 5:33 5:34 Replace "The dominant " by "An important" Changes in the sun may also be important See comment TS-86 [VINCENT GRAY (Reviewer’s comment ID #: 88-1902)] TS-88 A 5:33 5:41 The reader needs better guidance as to where to find the information supporting this Table is too large to include further statement.

 

Intergovernmental Panel on Climate Change Papers; IPCC Fourth Assessment Report Papers: Working Group I, The Physical Science Basis of Climate Change, 2005-2007; Expert and Government Review Expert and Government Review Comments on the Second-Order Draft, Technical Summary Comments. ESPP IPCCAR4WG1. Environmental Science and Public Policy Archives. Harvard College Library, Cambridge, Mass. page 27. 27

The possible reasons recent variability are covered in the text. [Richard Courtney (Reviewer’s comment ID #: 49-54)] TS-151 A 6:45 6:45 Add at end "Its concentration has now been constsnt for five years, and seems likely to fall" Rejected - no basis given for expecting [VINCENT GRAY (Reviewer’s comment ID #: 88-1911)] a fall.

 

Intergovernmental Panel on Climate Change Papers; IPCC Fourth Assessment Report Papers: Working Group I, The Physical Science Basis of Climate Change, 2005-2007; Expert and Government Review Expert and Government Review Comments on the Second-Order Draft, Technical Summary Comments. ESPP IPCCAR4WG1. Environmental Science and Public Policy Archives. Harvard College Library, Cambridge, Mass. page 31. 31

. ” [Richard Courtney (Reviewer’s comment ID #: 49-57)] TS-159 A 7:2 7:2 Insert after "but" "not at the same rate, as it" Text now removed for other reasons [VINCENT GRAY (Reviewer’s comment ID #: 88-1912)] TS-160 A 7:3 7:3 global fossil fuel emissions' Agreed [Govt. of Australia (Reviewer’s comment ID #: 2001-66)] TS-161 A 7:3 7:3 Change to: "...global emission due to fossil fuel use, cement production and gas flaring Fossil carbon dioxide sources now increase from 6.5 to 7.2 GtC/yr." to be consistent with the underlying text (Pg. 2-3, lines 42- explained in a footnote 43).

 
 

Intergovernmental Panel on Climate Change Papers; IPCC Fourth Assessment Report Papers: Working Group I, The Physical Science Basis of Climate Change, 2005-2007; Expert and Government Review Expert and Government Review Comments on the Second-Order Draft, Technical Summary Comments. ESPP IPCCAR4WG1. Environmental Science and Public Policy Archives. Harvard College Library, Cambridge, Mass. page 6. 6

By no stretch of the imagination can production and comparison of such “projections” be said to be “significant progress has been made in understanding past, recent and future climate change”. [Richard Courtney (Reviewer’s comment ID #: 49-37)] TS-33 A 3:4 3:4 TS Comment: Replace the phrase “These advances have arisen from:” Rejected - see ch 1 regarding advances with in modelling and projections for the past “These studies include acquisition of:”.

 

Intergovernmental Panel on Climate Change Papers; IPCC Fourth Assessment Report Papers: Working Group I, The Physical Science Basis of Climate Change, 2005-2007; Expert and Government Review Expert and Government Review Comments on the Second-Order Draft, Technical Summary Comments. ESPP IPCCAR4WG1. Environmental Science and Public Policy Archives. Harvard College Library, Cambridge, Mass. page 10. 10

would provide a greater negative feedback than the effect of a doubling of carbon dioxide with the maximum possible positive radiative feedback from water vapour. [Richard Courtney (Reviewer’s comment ID #: 49-43)] TS-58 A 4:32 4:35 These spurious "statistical" categories are just self-assessed guesses Rejected - the bases for probabilistic [VINCENT GRAY (Reviewer’s comment ID #: 88-1901)] assessments of likelihoods are covered in the report.