Chinese are already more on board than we are. China is the only country that actually discussed in formal government documents how important it is to control the size of your populations if you’re going to limit emissions.

We're never all going to agree with each other. We have to learn to value the diversity. It's one of the presumable principles of our government that isn't followed nearly enough - one of the jobs of the majority is to try and make the minority feel comfortable.

To err is human, but to really foul things up you need a computer.

There are substitutes for oil; there is no substitute for fresh water.

In pushing other species to extinction, humanity is busy sawing off the limb on which it perches.

My first policy move would be to try to get a conversation going in the US about what people stand for and what we really want. Do we want to keep adding people to the world and to our country until we move to a battery-chicken kind of existence and then collapse? Or do we want to think hard about what really is valuable to us, and figure out how many people we can supply that to sustainably?

Anyone who opposes methods to control the birth rate, is automatically voting in favour having the death rate go up.