Exellent article by economist William D Nordhaus debunks various claims made by global warming deniers, and shows there is cause for great concern, and ample reasons for taking actions (which will not devastate our economy). Includes:
[quote]The finding that global temperatures are rising over the last century-plus is one of the most robust findings of climate science and statistics.
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the IPCC report concluded: “No climate model using natural forcings [i.e., natural warming factors] alone has reproduced the observed global warming trend in the second half of the twentieth century.”
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the contention that CO2 is not a pollutant is a rhetorical device and is not supported by US law or by economic theory or studies.
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The idea that climate science and economics are being suppressed by a modern Lysenkoism is pure fiction.
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The big money in climate change involves firms, industries, and individuals who worry that their economic interests will be harmed by policies to slow climate change. The attacks on the science of global warming are reminiscent of the well-documented resistance by cigarette companies to scientific findings on the dangers of smoking.[/quote]

Ignorant to say climate science money driven
ars technica has useful article that takes to task claims that scientists are supporting global warming concerns because they make money doing so.
Includes:
Accusations that climate science is money-driven reveal ignorance of how science is done
Some bogus arguments take on a life of their own.
Warming skeptics don't pass laugh test
op-ed in Los Angeles Times rebuts some emails from global warming skeptics; includes:
Climate science still trumps skeptics