On Dec 30, 2:20 am, James Annan <[email protected]> wrote: > it is yet universally accepted. I do think it's plausible we would see > only about 2C more warming in this century even if emissions continue to > rise steadily (eg linearly extrapolating the recent rise in forcing), > but I wouldn't want to bet the farm on it.
Using my arithmetic (check?), CO2 increased at Mauna Loa by 0.850 ppm per year in the ten years 1960-69, and by 1.875 in the ten years 1999-2008. http://www.esrl.noaa.gov/gmd/ccgg/trends/ That is more than doubling of the rate of increase in 50 years is not what I would call a linear, and would mean close to 3 times the pre- industrial level by 2100. Cheers, Alastair. -- You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/globalchange
