Don't pay any attention to "the prophets of climate despair":
Errors and Emissions, by Paul Krugman, Commentary, NY Times: This just in: Saving the planet would be cheap; it might even be free. But will anyone believe the good news?
I’ve just been reading two new reports on the economics of fighting climate change: a big study by a blue-ribbon international group, the New Climate Economy Project, and a working paper from the International Monetary Fund. Both claim that strong measures to limit carbon emissions would have hardly any negative effect on economic growth, and might actually lead to faster growth. This may sound too good to be true, but it isn’t. These are serious, careful analyses. ...
Enter the prophets of climate despair, who wave away all this analysis and declare that the only way to limit carbon emissions is to bring an end to economic growth.
You mostly hear this from people on the right, who normally say that free-market economies are endlessly flexible and creative. But when you propose putting a price on carbon, suddenly they insist that industry will be completely incapable of adapting to changed incentives. Why, it’s almost as if they’re looking for excuses to avoid confronting climate change, and, in particular, to avoid anything that hurts fossil-fuel interests, no matter how beneficial to everyone else.
But climate despair produces some odd bedfellows: Koch-fueled insistence that emission limits would kill economic growth is echoed by some who see this as an argument not against climate action, but against growth. ... To be fair, anti-growth environmentalism is a marginal position even on the left, but it’s widespread enough to call out nonetheless.
And you sometimes see hard scientists making arguments along the same lines, largely (I think) because they don’t understand what economic growth means. They think of it as a crude, physical thing, a matter simply of producing more stuff, and don’t take into account the many choices — about what to consume, about which technologies to use — that go into producing a dollar’s worth of G.D.P.
So here’s what you need to know: Climate despair is all wrong. The idea that economic growth and climate action are incompatible may sound hardheaded and realistic, but it’s actually a fuzzy-minded misconception. If we ever get past the special interests and ideology that have blocked action to save the planet, we’ll find that it’s cheaper and easier than almost anyone imagines.