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.” [Richard Courtney (Reviewer’s comment ID #: 49-53)] TS-148 A 6:42 6:42 Refer to Figure TS-2.

Stomata data do not suffer from these problems and indicate that the recent rates of change to atmospheric concentration of carbon dioxide have repeatedly occurred in recent millennia and during transition from the last ice age. [Richard Courtney (Reviewer’s comment ID #: 49-3)] SPM- A 3:30 3:30 Add at beginning "Most of the".

Hence, changes for the period 1999- 2004 cannot be related to “climate” or “climate changes” according to the SPM’s own definitions. [Richard Courtney (Reviewer’s comment ID #: 49-4)] SPM- A 3:39 3:39 After "contributed" insert "about" See SPM-197 208 [VINCENT GRAY (Reviewer’s comment ID #: 88-2146)] SPM- A 3:39 3:39 The phrasing here is confusing.

See ch 3 figure on heavy [Richard Courtney (Reviewer’s comment ID #: 49-16)] precip for distribution of the changes SPM- A 8:49 8:50 This sentence is too vague; does it apply to convective precipitation, to Chapters note that the definition of heavy precip is 739 monsoons?

Indeed, additional complexity may reduce the accuracy of a model because it may exacerbate the effects of an erroneous parametrisation. [Richard Courtney (Reviewer’s comment ID #: 49-29)] SPM- A 12:1 12:3 provide more substantive information in this highlightes /bold letter sentence Accepted 1066 [Govt. of Germany (Reviewer’s comment ID #: 2011-237)] SPM- A 12:1 12:1 add information on expected warming for mitigation scenarios, in particular very WG1 has no basis to evaulate which scenarios are 1067 9 low stabilisation scenarios.

Hence, the actual warming of recent decades not known (but - on the basis of the radiosonde and MSU data - it seems most likely to have been less than 0.1 degrees C per decade ) and, therefore, “agreement with observations” is meaningless. [Richard Courtney (Reviewer’s comment ID #: 49-32)] SPM- A 13:1 13:1 Don't like the wording, or I don't know what it means.

If the natural system of sinks copes with the emissions as they occur then the emissions cannot accumulate. [Richard S Courtney] 2-34 A 11:54 11:54 A frustration of attempting to peer review this astonishingly poor draft report is the clear Rejected. Do not agree with their impression provided throughout the draft that the Report is intended to mislead.

[2.3]” [Richard Courtney (Reviewer’s comment ID #: 49-7)] SPM- A 5:7 5:7 Insert before "increases"" If water vapour and clouds are ignored completely" Water vapor and cloud changes are feedback effects 329 [VINCENT GRAY (Reviewer’s comment ID #: 88-2154)] and dealt with below.

.” [Richard Courtney (Reviewer’s comment ID #: 49-8)] SPM- A 6:9 6:9 "It should be clearer what is meant by “a wide range of past climates”.

.” [Richard Courtney (Reviewer’s comment ID #: 49-14)] SPM- A 8:5 8:7 I don't think it is very helpful for the reader to be giving trends here in terms of Reject. mm/yr used in many places in SPM. 637 rate per year--and remember that on page 6 rates were given variously as per century and per decade, so really confusing.