from: Stefan Rahmstorf <rahmstorfatXYZxyz-potsdam.de>
subject: [Wg1-ar4-ch06] comments to 126.96.36.199 (mainly for Keith)
to: IPCC Chapter 6 <wg1-ar4-ch06atXYZxyzs.ucar.edu>
some comments added in the text for the past millennium, plus I wrote some extra sentences
on the implications of the dispute (repeated below).
Hope it is useful,
Note that the major differences between the proxy reconstructions and between the model
simulations for the past millennium occur for the cool periods in the 17^th-19^th
Centuries; none of these reconstructions or models suggests that there was a warmer
period than the late 20^th Century in the record.
A larger amplitude of preindustrial natural climate variability does not imply a smaller
anthropogenic contribution to 20^th Century warming (which is estimated from 20^th
Century data, see Chapter XXX on attribution), nor does it imply a smaller sensitivity
of climate to CO2, or a lesser projected warming for the future.
Attachment Converted: "c:\eudora\attach\188.8.131.52_comments_Stefan.doc"
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