The scarcest resource is not oil, metals, clean air, capital, labour, or technology. It is our willingness to listen to each other and learn from each other and to seek the truth rather than seek to be right

We can't control systems or figure them out. But we can dance with them!

There is too much bad news to justify complacency. There is too much good news to justify despair.

The European nations take climate change very seriously.

The sustainability revolution will be organic. It will arise from the visions, insights, experiments and actions of billions of people. The burden of making it happen is not on the shoulders of any one person or group. No one will get the credit, but everyone can contribute.

There have been high crimes and misdemeanors, but they have been committed by the special prosecutor and the Congress, not the president.

A knowledgeable and courageous U.S. president could help enormously in leading the world's nations toward saving the climate.