> The problem is that we're well past the point where "carbon-neutral" is good enough. We not only need to stop causing additional harm, we need to figure out w

> The problem is that we're well past the point where "carbon-neutral" is good enough. We not only need to stop causing additional harm, we need to figure out ways to undo at least some of the harm we've already done. Agreed. I think we're already well into a new phase in humanity where geo-engineering on a massive scale is going to be needed if we don't want to slip back into the dark ages, or worse. Unfortunately there may not be any practical solutions available to us. I agree with a lot of what you said, I don't the markets can solve the problem. It will take wide scale government intervention. Maybe that means capitalism as we know must go away, or just a highly modified version of capitalism, I don't know. But free market capitalism is absolutely going to drive us off the cliff.