To: Pat W. who wrote (117 ) 4/10/2007 2:29:43 PM From: Sam Citron Read Replies (1) | Respond to of 442 Pat, I'm not surprised at the difficulty of nailing down "accurate numbers" on "natural" versus man made CO2. Some have even said that CO2 changes in the atmosphere lag temperature changes, suggesting that the central causality issue is misconstrued. As I have said before, I am not a scientist, but simply an investor. I know that we do not live in a perfect world and that there is a buyer for every seller. Certainty does not exist. I know my limitations. I have never met so many skeptics on the anthropogenic causes of climate change as I have encountered on this thread. Whether they are right or wrong we may never know. This topic does not lend itself to easy proofs. I'll simply keep investing and living my life as if the decisions I make to conserve fossil fuels makes a difference. With rising oil prices, I would attempt to conserve energy even if there were no link to climate change whatever. The purported link to climate change is simply another reason, but not the only reason, to go green. For example, I prefer bicycles to cars and sailboats to motorboats. I consider these modes of transport to be more aesthetically pleasing, relaxing and fun. They are silent and non-polluting. I live in a small town and drive an electric car when I am in a hurry. It looks funny, has no doors, and the kids love it. It saves us lots of money on gas. Even if it is not going to save the planet, I am still going to keep driving it. I will pursue "green investing" strategies to the extent that they are profitable. I will also invest in oil refineries and oil companies if I think I can earn high rates of return. I will make mistakes and try to learn from them. Good luck in your efforts to get to the bottom of this climate change question. Let me know when you find the answer. Sam