I played with English and Sociology in college but dropped out to work in the anti-war movement. I was going around denouncing the Viet Nam war as immoral but one day it dawned on me that I didn't know what that meant. I signed up for an ethics class at San Francisco State to find out the answer.

The only way major change in environmental policy is going to happen, the only way, is if there is a very strong, very active popular movement that demands it and such a movement would be unparalleled because it would be a popular movement that says, "Raise our taxes so that we change our behavior."

Obama's clean power plan, methane regulations, and increased fuel economy standards are about as good as our political system can do at this point in our history. Let's embrace these things, make them work, and push for more, rather than denouncing them because they're 9th best (which they are).

I think when it comes to climate change, the single most important thing in the world is for the United States' Congress to pass an effective bill that will put a price in carbon because if it starts costing something to emit carbon, this will provide an incentive, people do act on the basis to some extent of economic incentives to emit fewer greenhouse gases.

Aristotle thought that humans are rational animals and Hobbes thought that we act on the basis of rational self-interest. If only! It's not that we never do these things, it's that they are hardly constituative of who and what we are.

Philosophy isn't reading Emmanuel Kant. Philosophy is about thinking hard about what the right thing to do is in a situation and approaching that kind of question in an open-minded and open-hearted way, receptive to a broad range of considerations and interests of other people and other things.

People talk about the idea of special relationships, that is, the morality only really binds people who stand in some kind of contractual relationship with each other but in fact if you take that seriously as a criteria of when we have a moral relationship then it's hard to see why we would have moral obligations to strangers for example or people who live across the sea from us but yet, every decent person believes that we do.