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The Final Frontier

JULY 11, 2011 7:05AM

By Kent Pitman

Topics: methane, carbon dioxide, co2, atmosphere, environmental, environment, inhospitable, alien planets, alien, planets, moon, mars, venus, climate record, hottest on record, hottest year on record, hottest, hotter, hot, greenhouse effect, greenhouse gases, global warming, climate change, carl sagan, future, spaceship earth, science, politics