The Earth doesn't care what we need; Mother Nature doesn't negotiate.

If you want to change the world, change it through the market

The Earth doesn't care what we need; Mother Nature doesn't negotiate.

The four words that will define this century: The Earth is full.

Thanks to those pesky laws of physics, when things aren't sustainable, they stop.

It takes a good crisis to get us going. When we feel fear and we fear loss we are capable of quite extraordinary things.

When you are surrounded by something so big that requires you to change everything about the way you think and see the world, then denial is the natural response. But the longer we wait, the bigger the response required.