Recently read "State of Fear" by Michael Crichton. Very good book.

In the appendix, he gives his views based on his research that he did for the writing of the book. Basically, his premise is that we still don't understand climate patterns and predicting long-term weather patterns is accurate to within 400% at best. He rightly states that 400% isn't exactly an acceptable scientific margin.
He proposes that politics and government intervention is bad, except in cases where it's obvious that the effects of some toxic substance is injuring humans or wildlife. He makes an excellent point that we don't even know how to preserve wildlife, and that our national parks are prime examples of this. Everytime someone tries to restore a balance to something (e.g. too few deer, too many bears, etc.), the end result is that some other entity within the eco system is damaged. For example, deer are overpopulated, we wipe out deer, but then something that the deer ate ends up spiraling out of control, etc.). He makes the point that man has been shaping the world around him since he first appeared, and what makes today any different?
He proposes that environmental groups should have a lifespan of about 50 years, before disbanding and starting new groups, because after a few decades, they get too political. One of the characters in his book decides to form a new environmental organization, called "Study the Problem and Fix It," saying that there aren't any environmental groups today that actually do just that.
Very good book. I recommend it to anyone who likes action, mystery, suspense, or conspiracy. I equate it to the style of a Clive Cussler novel and/or a Tom Clancy novel.