When we respond to threats immediately and take action right away, it's usually the threats that we're hard-wired to respond to, the kinds of things that our ancestors survived.

The cumulative amount of man-made global pollution that's in the atmosphere now traps as much extra heat energy every day as would be released by 400,000 Hiroshima-class atomic bombs exploding every day. It's a big planet, but that's an awful lot of energy.

I don't really consider this a political issue, I consider it to be a moral issue.

There is an air of unreality in debating these arcane points when the world is changing in such dramatic ways right in front of our eyes because of global warming.

The age of printed pamphlets and political essays has long since been replaced by television, a distracting and absorbing medium which seems determined to entertain itself more than it informs and educates.

Global warming pollution, indeed all pollution, is now described by economists as an “externality.” This absurd label means, in essence: we don’t to keep track of this stuff so let’s pretend it doesn’t exist.

Capitalism is the best way of organizing economic activity for a lot of reasons. It unlocks a higher fraction of human potential, it balances supply and demand, it's more consistent with higher levels of freedom. But the way we're pursuing it now, focuses on such short-term horizons, that a lot of businesses and investors are tempted to look at investments in terms of what's gonna happen in the next 90 days, what's gonna happen in one year. But the old phrase, "Good things take time," is true of successful businesses as well.