Credits
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"Ecological Footprint." Wikipedia. Wikimedia Foundation, 06 Jan. 2014. Web. 02 June 2014. <http://en.wikipedia.org/wiki/Ecological_footprint>.
"Ecological Footprint." WWF. N.p., n.d. Web. 02 June 2014. <http://wwf.panda.org/about_our_earth/teacher_resources/webfieldtrips/ecological_balance/eco_footprint/>.
"Ecological Footprint." Reduce Your Footprint: Quiz by Center for Sustainable Economy. N.p., n.d. Web. 31 May 2014. <http://www.myfootprint.org/en/take_action/reduce_your_footprint/>.
"Reduce Your Impact." WWF. N.p., n.d. Web. 01 June 2014. <http://wwf.panda.org/how_you_can_help/live_green/>.
"How to Reduce Your Carbon Footprint." How to Reduce Your Carbon Footprint. N.p., n.d. Web. 31 May 2014. <http://www.carbonfund.org/reduce>.
"Climate Science Glossary." Skeptical Science. N.p., n.d. Web. 05 June 2014. <http://www.skepticalscience.com/>.