The sun.
2007-06-21 09:59:06
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answer #1
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answered by Kandi :P 3
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The cause of global warming is given below:-
The climate system varies through natural, internal processes and in response to variations in external forcing factors including solar activity, volcanic emissions, variations in the earth's orbit (orbital forcing) and greenhouse gases. The detailed causes of the recent warming remain an active field of research, but the scientific consensus identifies increased levels of greenhouse gases due to human activity as the main influence. This attribution is clearest for the most recent 50 years, for which the most detailed data are available. Contrasting with the scientific consensus, other hypotheses have been proposed to explain most of the observed increase in global temperatures. One such hypothesis is that the warming is caused by natural fluctuations in the climate or that warming is mainly a result of variations in solar radiation.
None of the effects of forcing are instantaneous. Due to the thermal inertia of the Earth's oceans and slow responses of other indirect effects, the Earth's current climate is not in equilibrium with the forcing imposed. Climate commitment studies indicate that even if greenhouse gases were stabilized at present day levels, a further warming of about 0.5 °C (0.9 °F) would still occur.
2007-06-21 10:46:40
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answer #2
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answered by JMdipto 3
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Currently, the "pop" answer is an increase in the Greenhouse effect due to man-made emissions.
The Greenhouse effect is responsible for the retention of 20-30 degrees of the Sun's heat. No one is sure exactly how much.
Most of the Greenhouse effect is from water vapor (90%) and the second most is from CO2 (<10%) Of that CO2, man is responsible for less than 10%. That puts man as responsible for less than 1% of the Greenhouse effect, even less when you look at the total thermal picture of global heat. (Man is also responsible for considerable cooling due to sulfate/particulate pollution. Some say that the man-made cooling effect is greater than the warming effect.)
2007-06-21 12:29:36
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answer #3
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answered by 3DM 5
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Essentially, far too much CO2 in the atmosphere at a given time and the planet's inability to handle it. This is true throughout history whether it's been from man-made causes or not (warming has been intimitely linked to levels of CO2). Scientists have overwhelming PROVEN this. In the past though, nature has been able to resolve this problem through natural processes. This is no longer the case. CO2 is getting into the atmosphere at an alarming rate and we need to do something about it.
2007-06-21 10:47:15
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answer #4
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answered by Jeff P 2
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It is clearly the effects of solar radiation which is periodic in several known ways and our orbit also has a wobble in it. The termites on this earth, known as global warming alarmists, believe they, actually us (especially U.S.), are responsible, but in fact a termite simply doesn't realize its own insignificance.
2007-06-21 12:56:45
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answer #5
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answered by JimZ 7
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The cause is hot air emitting from Al Gore's Climate Change speeches, and high levels of methane from loony Leftist vegetarians' farts.
2007-06-21 10:30:40
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answer #6
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answered by jugheaduga88 2
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Earthquakes, meteor showers, black holes, flying fish, polar bears
2007-06-21 15:12:33
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answer #7
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answered by Anonymous
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Pollution, mostly by smoke coming out of pipes sticking out of factories...
2007-06-21 11:13:45
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answer #8
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answered by Anonymous
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Pollution. Deforestation(less trees, less oxygen, etc...). Plus gases and fuses from cars. That's all I know.
2007-06-21 10:29:36
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answer #9
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answered by mizshy95 2
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Not CO2 and not Methane now what.
2007-06-21 11:44:44
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answer #10
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answered by JOHNNIE B 7
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