"But while we recognize the occurrence of these natural, cyclical environmental trends, we can't say with assurance that man's activities cause weather changes."
Why do people who probably had one science class in high school think they are suddenly experts on a subject that I study daily and still don't know everything about? And as my office mates have stated, people need to get it through their thick heads that there is a difference between climate and weather. First off we change weather patterns all the time (smog anyone) and second we are constantly influencing climate if only from our pumping of CO2 into the atmosphere but with a whole host of other influences. I hate, hate, HATE, it when people think they know what they are talking about. It is just as bad as when celebrities talk about politics. SHUT UP, you don't know what you are talking about. Leave it to those who do.