http://www.flashcardexchange.com/tag/apesgwarming www.flashcardexchange.com: apesgwarming Flashcards en-us Sun, 27 May 2012 07:14:54 PDT Sun, 27 May 2012 07:14:54 PDT support@flashcardexchange.com 720 http://www.flashcardexchange.com/flashcards/view/795965 Cards on global warming, stratospheric ozone depletion, and ground level ozone. 2009-04-22 http://www.flashcardexchange.com/flashcards/view/795965