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Section will be incorporated unnecessary. into other existing sections and boxes. [Andrew Lacis] 6-1572 A 38:4 39:44 I was unclear about the purpose of the entire section 6.6, which lacked the clear Accepted. See 6-1571 connection to the lessons learned of the rest.

But they totally neglect to mention the fact that this building has an exceptionally solid foundation and a remarkably strong supporting framework. [Andrew Lacis] 1-200 A 5:1 5:15 Of all scientific endeavors of mankind, climate science is the most interdisciplinary of Accepted. them all.

[Andrew Lacis] 9-1255 A 60:24 60:24 Some EMICs or simple models may be more elaborate in terms of non-linearity than A cautionary statement has been made GCMs.

One objective is to assess and compare the performance of radiation codes, the other to define a standardized means for comparing the efficacy of different climate forcings. [Andrew Lacis] 2-395 A 7:54 8:6 Definition of RF is confusing and not consistent with the results presented in the chapter. Partially accetped - text reworked See my comment #1-2 above.

Note also the nonlinearity in the CFC increase combined with ozone decrease experiment also described by Hansen et al. (1997). [Andrew Lacis] 2-405 A 8:7 8:7 After line 7, some cautionary notes on the equation in the previous paragraph are needed, Partiallyaccepted.

The temperature difference between the surface temperature and the effective radiating temperature is a measure of the strength of the atmospheric greenhouse effect. [Andrew Lacis] 2-2321 A 93:28 93:28 For the Earth, which reflects about 30% of the incident solar radiation, the effective Noted: Section moved to Q1.3 radiating temperature has be about 255 K (or -18C).

[Michael MacCracken] 6-1679 A 64:15 Insert “all” after “explain” Rejected [Vincent Gray] 6-1680 A 64:16 64:17 Same comment as above The phrase was removed, as comment [Andrew Lacis] 1678 also took issue with it 6-1681 A 64:17 (Usoskin et al., 2003) is not a good reference in this context since their record peaks refs have to go from the questions around 1970 AD (green curve in their figure 2).

The time scale to actually reach equilibrium is a totally separate kind of concern. [Andrew Lacis] 9-1139 A 54:24 54:24 Maunder Minimum is a term to describe a period of low numbers of sunspots or low solar Accepted. activity between 1640 and 1720 (Eddy Science 1976), it is not the name of a climatic cool period and it is extremely misleading to use it as such.

Establishing how clouds respond to temperature change addresses the principal uncertainty affecting climate sensitivity. [Andrew Lacis] 9-1130 A 53:57 54:2 several studies have used observed surface temperature changes over the last 150 years Text has been edited.

Perhaps it is intended to discuss aspects of Accepted. Text reworded radiative forcing efficacy (section 2.8.5). [Andrew Lacis] 2-420 A 8:34 8:37 I recommend that you emphasive that if one wishes to understand the net impact of a new Accepted unit of emissions they must integrate over the lifetime of its effect.