global warming

•  Global Warming
• On Feb. 2, 2007, the United Nations scientific panel studying climate change declared that the evidence of a warming trend is “unequivocal,” and that human activity has “very likely” been the driving force in that change over the last 50 years.
• There is scientific evidence that the release of carbon dioxide and other heat-trapping gases from smokestacks, tailpipes and burning forests has played a central role in raising the average surface temperature of the earth by more than 1 degree Fahrenheit since 1900.
• Gases like carbon dioxide and methane allow sunlight to reach the earth, but prevent some of the resulting heat from radiating back out into space
• Without the greenhouse effect, the planet would never have warmed enough to allow life to form
• By 2100, sea levels are likely to rise between 7 to 23 inches, and the climate panel predicted that the global climate is likely to rise between 3.5 and 8 degrees Fahrenheit.

 Without the green house effects the earth would not be warm enough for us to live on.  Does this mean that we did not cause global warming and that it was here before humans?  Yes, humans are helping to contribute  to global warming, but with out it we would not be here.  So how long has global warming been around?  That is the mystery question.  If the earth keeps warming at a rapid pace and the sea level continues to rise what is to become of the earth and the weather patterns.  Earth is likely to become to warm for humans to live on  and the seas may spread to cover more land masses.

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