I have been reading the report and it seems to me to be something of a breakthrough for reasonable assessment of climate change.
I mean it says that it is very likely that most of the observed global increase in temperature in the latter half of the twentieth century is due to the anthroprogenic increase in greenhouse gas concentrations.
This seems for the first time, they want climatologists to stop blaming the temperate rises in the first half of the 20'th century on CO2 emmissions.
Even sceptics such as myself would agree that changing the contents of the atmosphere would have some effect on climate (not necessarily a large one). Apparently what the IPPC has determined is that the amount of temperature increase caused by human activity over a 50 year period is 90% likely to have exceded 0.3 degrees celcius.
The expectations of the report is for a 2 degree increase in global temperatures over the next 100 years which is lowest end of most global warming predictions.
2007-10-17
08:57:21
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7 answers
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asked by
Ben O
6
in
Environment
➔ Global Warming
If you're interested, here's their summary report. http://news.bbc.co.uk/2/shared/bsp/hi/pdfs/02_02_07_climatereport.pdf
2007-10-17
09:25:43 ·
update #1
Nickel
I was considering where they expect the earths temperature to increase at about 0.2 degrees per decade.
You correctly pointed out that the expected temperature change does depend on which scenario you consider as they cannot accurately predict future CO2 emmissions.
2007-10-17
09:32:58 ·
update #2
"A 2°C warming is an extremely optimistic scenario, according to the IPCC."
Dana, did they use those words or do you just think that thats what they should say instead of what they did say.
The IPCC doesn't need you speaking for them because they are trying to stick to the science and weed out the sensationalism. You are peddling your beliefs. and they are not on your side.
2007-10-18
02:43:38 ·
update #3