EOS 110 Lecture Notes - Lecture 4: Chlorine, Continental Shelf, Arctic Methane Emissions
16 Jan 2017
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Key : (cid:894)#(cid:895) = slide (cid:374)u(cid:373)(cid:271)er of (cid:272)orrespo(cid:374)di(cid:374)g i(cid:374)for(cid:373)atio(cid:374) fro(cid:373) ro(cid:271)erta"s pdfs. There is an alarming carbon dioxide increase in the atmosphere (2: major sources. Carbon dioxide concentrations in the atmosphere have small decreases and increases over time that are caused by the change in season (2-3: spring and summer = more photosynthesis = less carbon dioxide. There has been a global average temperature increase of 0. 85 0. 2 degrees celcius since 1880: accompanied by a global sea level rise 0. 19 0. 02 m since 1901. Ipcc emission scenarios based on growth and energy choices: there is a 1. 5 - 5 degree celsius average warming predicted to occur by 2100 (7, with greater changes in arctic. Global warming will lower the earth"s albedo by melting the ice. Water vapour feedback (11: warming = more atmospheric water vapour = greater greenhouse effect = additional warming.
