Raging wildfires, acidified oceans and soaring temperatures likely caused a mass distinction 250 million years ago killing 95 percent of the Earth's marine life and 70 percent of terrestrial species.
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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/9Li4qw7fLAE/massive-greenhouse-gases-killed-the-earth-before-and-it-could-happen-again
ROGERS COMMUNICATIONS SAIC SATYAM COMPUTER SERVICES SES
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