One group denies the facts about the past the other denies those about the present. Are they the same?
p.s. I don't think they are, but can't find a reason why they aren't.
2007-08-29
14:44:57
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9 answers
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asked by
C.S.
5
in
Politics & Government
➔ Government
For chillen and any other sceptics, I'll actually quote from the IPCC fourth assessment report, which represents the results of 3,000 scientists reviewing ALL the ev.
"The global atmospheric concentration of carbon dioxide has increased from a pre-industrial value of about 280 ppm to 379 ppm3 in 2005. The atmospheric concentration of carbon dioxide in 2005 exceeds by far the natural range over the last 650,000 years (180 to 300 ppm) as determined from ice cores."
"The primary source of the increased atmospheric concentration of carbon dioxide since the pre-industrial period results from fossil fuel use, with land-use change providing another significant but smaller contribution."
"The observed widespread warming of the atmosphere and ocean, together with ice mass loss, support the conclusion that it is extremely unlikely that global climate change of the past 50 years can be explained without external forcing, and very likely that it is not due to known natural causes alone."
2007-08-29
14:59:47 ·
update #1
http://www.ipcc.ch
2007-08-29
15:03:26 ·
update #2