People are overwhelmed looking up at the Mount Everest of environmental challenges that we face. But you put one foot in front of the other and you recognize that not everyone is Sir Edmund Hillary.

The two most abundant forms of power on earth are solar and wind, and they're getting cheaper and cheaper.

I ride my bike for transportation a great deal - occasionally I ride it for fun. But I also have a generator bike that's hooked up to my solar battery pack, so if I ride 15 minutes hard on my bike, that's enough energy to toast toast, or power my computer.

We, who have so much, must do more to help those in need. And most of all, we must live simply, so that others may simply live.

I started composting in 1970 by taking my food scraps out behind where I lived and burying them in a hole next to the railroad tracks - and green things started to grow there!

The food in Yugoslavia is fine if you like pork tartare.

It takes less land to grow a pound of broccoli than it does a pound of beef. Less land to grow a pound of grain than a pound of beef. Less water, less energy.