Instapundit on Global Warming

Instapundit.com on Global Warming-

However, I regard two questions as basically no longer worth debating, at least by people with my level of science education:

1) Is AGW happening?
2) Should we do something about it?

I would add a third item

3) CAN we do anything about it now? Short of stopping all release of Greenhouse Gases (which would kill more people than GW ever will)