When you have solar panels, your electricity gets there for free, no one's figured out how to meter the sun yet. And that's good.

Look - every time is the wrong time and the perfect time to have a kid, and you just do it when you can.

Our weird problem is an abundance of resources and a shortage of hard economic reasons not to use them.

At the moment, the 4 percent of us in this country produce a quarter of the world's carbon dioxide - once you look at maps of rising sea levels and spreading mosquitoes, you realize that we've probably never figured out a way to hate our neighbors around the world much more effectively.

The world is on fire, and I'm doing my best to help steer the firetruck.

Those of us in the west have figured out a lot of ways to damage the lives of poor people in this country and around the world over the years.

The idea that China and India will just abandon climate action is not true, because they're doing it for more reasons than we are.