The technology we need most badly is the technology of community, the knowledge about how to cooperate to get things done.

In the scientific community, the debate is over, for all intents and purposes, about whether or not the planet is heating and who is causing it. In fact, it's more or less been over since 1995.

Between [Speaker of the House] Paul Ryan, [Senate Majority Leader] Mitch McConnell, and Donald Trump's team, I don't see a lot of openings for making real progress.

What makes us different? We're the creature that can decide not to do something that we are capable of doing.

If one wanted to stigmaitise, that's how one would do it - lots and lots of people saying "we're severing our ties".

The roof of my house is covered in solar panels. When Im home, Im a pretty green fellow.

There are so many symptoms of this disease it's hard to know where to start to catalogue them, but just look at the effects on hydrology - on the way water moves around the planet.