Extreme Weather Hits Home – Weblog

November 19, 2007

Draft of IPCC 4th Report Posted

Filed under: Global warming — Tags: , , , , — John Banta @ 8:11 am

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The fourth and final part of the IPCC’s 2007 report has been posted in draft from and can be accessed at: http://www.ipcc.ch/pdf/assessment-report/ar4/syr/ar4_syr_spm.pdf

 Some highlights include:

Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level,”

“Eleven of the last twelve years (1995-2006) rank among the twelve warmest years in the instrumental record of global surface temperature (since 1850) … The temperature increase is widespread over the globe, and is greater at higher northern latitudes … Land regions have warmed faster than the oceans.”

Responses to some recent extreme events reveal higher levels of vulnerability than the Third Assessment Report. There is now higher confidence in the projected increases in droughts, heatwaves, and floods as well as their adverse impacts.”

An introductory slide show is at: http://www.ipcc.ch/pdf/presentations/pachauri-un_nyc_2007-09-07.pdf

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