Inaction may be the biggest form of action.

Organic farming is about buying out of a corrupt, illegal and dishonest system.

Let us not mince words about what this would be: a deportation force designed to break up families and deport millions of people.

Taking significant amounts of carbon out of our economy without harming its vibrancy is exactly the sort of challenge at which California excels.

It looks to me to be obvious that the whole world cannot eat an American diet.

This is exciting, it is bold and it is absolutely necessary if we are to have any chance of stopping potentially catastrophic changes to our climate system.

The shuttle tomorrow is truly like laying the last spike on the transcontinental railroad, only much more so. And whether or not we're going to see in in the next 10 or 20 years, there are people alive today who will see manufacturing in space from moon materials or from asteroids.