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I, too, wonder if global warming can really be stopped or slowed down. If we're going to make real changes we need to get all the countries to cooperate with one another and form a plan. This does not realy seem possible. Even just within the United States most people do not agree. We are suppposed to be a forward thinking nation and we are spending money on wars instead of science. It will be interesting to see what role global warming, and other environmental issues, will play in the upcoming presidential election.