[ZenGum]

Thanks Hawkeye. I deal with this stuff at work so I get bored with it quickly, but the CRU hack is 99% a non-issue. Even if there were good reasons to doubt the CRU's findings, there are dozens of other units that have come to similar findings using different methodology. This "expose' " is a scare campaign to interfere with the Copenhagen conference.

We have known since the 1860s that carbon dioxide is a greenhouse gas. (Yes, 1860s).
We have known since the 1960s that the level of CO2 in the atmosphere is increasing due to human burning fossil fuels, amongst other things.
We have long known that climate (and weather) are complex phenomena with many interacting causes, so that the effects of any change in one factor will take a while to emerge from the noise of the system.

The *only* room for argument is the possibility that roughly doubling CO2 levels (which we have done) will have a tiny, trivial effect on global climate; however, the experts who do the sums (in peer-reviewed journals) say otherwise.

This being the only habitable planet we know of or can feasibly reach, running potentially disasterous experiments on it would seem very stupid.

As you were, carry on.