We can't leave everything to the free market. In fact, climate change is, I would argue, the greatest single free-market failure. This is what happens when you don't regulate corporations and you allow them to treat the atmosphere as an open sewer.

What we know is that the environmental movement had a series of dazzling victories in the late '60s and in the '70s where the whole legal framework for responding to pollution and to protecting wildlife came into law. It was just victory after victory after victory. And these were what came to be called 'command-and-control' pieces of legislation.

Politics hates a vacuum. If it isn't filled with hope, someone will fill it with fear.

That's the big mistake the environmental movement made - 'We'll scare the hell out of you, and you'll become an activist'.

The truly powerful feed ideology to the masses like fast food while they dine on the most rarified delicacy of all: impunity.