Global warming?

[xoxoxoBruce]

There is no reason not to act in an economically sustainable manner and in way that stimulates new energy technologies and improved energy efficiencies....other than the objections of the affected industries with an investment in the status quo.

OK, but the rub, for me at least, is how much, how fast, at what cost?

Example with numbers pulled out of my ass: you want cut CO2 emissions.
To cut 50% costs X dollars and a little social change (suffering, in some people's view).

To cut 75% costs 5X dollars and significant social change.

To cut 90% costs 25X dollars and radical social change.

To cut 95 % costs 100X dollars and revamping our entire way of life.

To cut 98 % I don't even want to go there.

By all means lets get started with the relatively easy/cheap part, but keep on investigating the actual costs, benefits and impact, so we can make more intelligent decisions/plans.
We want to be flexible enough to change directions when new information becomes available, without careening like a pinball every time somebody comes up with a new theory... that's the hard part.