Monday, October 3, 2011

Global Warming PSA


Sources: http://climate.nasa.gov/kids/bigQuestions/whatDoesGCCmean/
              http://climate.nasa.gov/kids/bigQuestions/greenhouseEffect/
              http://climate.nasa.gov/kids/bigQuestions/climateChanging/
              http://climate.nasa.gov/kids/bigQuestions/weCanHelp/
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