On the other hand, if the people who advocate doing something now are wrong, the worst is mostly economic.
Unless of the course the fact that the earth spends 90% of its time in deep ice ages is taken into account, and anything we might undertake to prevent warming could operate with an unintended concequence much worse than any global warming scenario.
Ice Ages & Astronomical Causes
Brief Introduction to the History of Climate
by Richard A. Muller
Origin of the 100 kyr Glacial Cycle
Figure 1-5 Climate for the last 420 kyr, from Vostok ice
That's a price I'm more than willing to pay to hedge my bets to protect the millions of lives at risk, as well as the ecosystems and animal species facing extinction.
The real question is how is 9:1 odds of accelerating the earth into into a deep iceage going to protect mankind, ecosystems or species facing extinction?
I am more than willing to pay to hedge my bets against an iceage by doing anything I can to encourage abit of warming myself.