When it comes to climate, we can all make a big difference. At the most basic level, don't let denial go unchallenged and win the conversation on climate.

The Pacific Yew can be cut down and processed to produce a potent chemical, taxol, which offers some promise of curing certain forms of lung, breast and ovarian cancer in patients who would otherwise quickly die... 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.

David Agus is one of America's great doctors and medical researchers, a man dedicated to improving the health of as many people as he can. Written in a style and format that will truly engage readers, The End of Illness presents a dramatic, new way of thinking about our own health-a way that could lead to greatly improving the quality of life for millions, starting right now.

Feb. 9, 1999 Dear Friend, Without your previous support, Bill Clinton and I would not have won our victories for the American people in 1992 and 1996. ... And to win in 2000, I need you by my side.

In order to solve the climate crisis, we need to solve the democracy crisis.

I am Al Gore, and I used to be the next president of the United States of America.

In the end, we must restore a balance within ourselves between who we are and what we are doing. Each of us must take a greater personal responsibility for this deteriorating global environment; each of us must take a hard look at the habits of mind and action that reflect - and have led to - this grave crisis.