Since the Earth is finite, and we will have to stop expanding sometime, should we do it before or after nature's diversity is gone?

A good leader sets the right goals, gets things moving, and helps us to discover that we already know what to do.

Models can easily become so complex that they are impenetrable, unexaminable, and virtually unalterable.

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

The European nations take climate change very seriously.

George W. cares as much about climate change as you would expect from a Texas oilman

You should issue demerits for tree cutting or the destruction of humus.