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Biology 22 Online
OpenStudy (anonymous):

What causes global warming?

OpenStudy (drakedoesmc):

Carbon dioxide and other air pollution that is collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Coal-burning power plants are the largest U.S. source of carbon dioxide pollution -- they produce 2.5 billion tons every year. hope that help if so slap that "best response" buttton

OpenStudy (anonymous):

Thank you(:

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