"Global Warming." Global Issues in Context Online Collection. Detroit: Gale, 2013. Global Issues In Context. Web. 6 Jan. 2014.
Ifill, Gwen, and Coral Davenport. "World Faces a Fight from Behind to Keep Up With Rising Rate of CO2 Emissions." PBS. PBS, 03 Dec. 2012. Web. 06 Jan. 2014.
Kloeppel, James E. "“Global Warming Could Halt Ocean Circulation, With Harmful Results” (Excerpt)." NASA Earth Observatory 7 Dec. 2005. Rpt. in Global Issues in Context Online Collection. Detroit: Gale, 2009. Global Issues In Context. Web. 6 Jan. 2014.
Rohter, Larry. "Brazil, Alarmed, Reconsiders Policy on Climate Change." The New York Times. The New York Times, 31 July 2007. Web. 06 Jan. 2014
Ifill, Gwen, and Coral Davenport. "World Faces a Fight from Behind to Keep Up With Rising Rate of CO2 Emissions." PBS. PBS, 03 Dec. 2012. Web. 06 Jan. 2014.
Kloeppel, James E. "“Global Warming Could Halt Ocean Circulation, With Harmful Results” (Excerpt)." NASA Earth Observatory 7 Dec. 2005. Rpt. in Global Issues in Context Online Collection. Detroit: Gale, 2009. Global Issues In Context. Web. 6 Jan. 2014.
Rohter, Larry. "Brazil, Alarmed, Reconsiders Policy on Climate Change." The New York Times. The New York Times, 31 July 2007. Web. 06 Jan. 2014