The truth is that climate change is presenting the greatest challenge humanity has ever faced.

I think George W. Bush has a warm, engaging personality. But, you know, the presidency is more than just a popularity contest.

I smoked pot in college and in the Army.

I put all my sighs in a lockbox

Many of the green places and open spaces that need protecting most today are in our own neighborhoods. In too many places, the beauty of local vistas has been degraded by decades of ill-planned and ill-coordinated development.

It seems an easy choice - sacrifice the tree for a human life - until one learns that three trees must be destroyed for each patient treated. Suddenly we must confront some tough questions. How important are the medical needs of future generations?

The struggle to save the global environment is in one way much more difficult than the struggle to vanquish Hitler, for this time the war is with ourselves. We are the enemy, just as we have only ourselves as allies.