If America wants to retain its position as a global power, its president must listen to the people and show strong leadership at this turning point in human history.

Our beliefs, our values shape the way we look out at the world and the way we treat it. If we believe that we were here, placed here by God, that this - all of this creation is for us, it's for us to go and occupy, dominate and exploit, then we will proceed to do that.

Fukushima is the most terrifying situation I can imagine.

Environmentali sm is really about seeing our place in world in a way that humans have always known up until very recently - that we are part of nature-utterly dependent on the natural world for our well being and survival.

If we continue to set human borders and the economy as our highest priorities, we will never come to grips with the destructiveness of our activities and institutions.

We are playing Russian roulette with features of the planet’s atmosphere that will profoundly impact generations to come. How long are we willing to gamble?

In nature there is no such thing as waste. In nature nothing is wasted; everything is recycled.