*"If something is to be done, whether or not global warming is real or not, comes down to what decisions are the right decisions."

*How about a carbon tax that is linked to warming, or more accurately the specified predictors of warming.

The IPCC made specific predictions about what initial form warming due to a man-made greenhouse effect would take (as distinct from other warming influences, such as the Sun), and said that it would be an early indicator.

If the early indicator shows up, the tax goes up - as it should. The higher the warming indicator gets, the higher the tax goes - to the point of making carbon fuels uneconomic. If the indicators don't show, the tax stays low (or eventually disappears) - as it should. 

That is a course of action that can be started now, that will only take effect if needed, and won't cause damage if it is not needed.

I'm up for it.