... have concluded that human-induced global warming is a threat to the earth's ecosystem. Other groups have determined that global warming is real threat are WHO, Union of Concerned Scientists and others researchers. Businesses also recognize the problem with global warming in February 2000 in Switzerland CEO's of the world's 1000 largest corporations voted climate change the most urgent problem facing humanity. Washington reports that nearly three quarter of Americans believe global warming is happening or will happen and most see it as serious problem according to the pool released by World Wildlife Fund. Over 1500 scientists from 63 countries had signed the Call to Action and this number includes Nobel Prize winners in science. I think that we have enough proof that global warming is real, than one will say what is the problem with it? There are couple facts about what is happening because of global warming. First, polar ice ...

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