Work Cited

            1)      Stirling, I. & Parkinson, C.L. Possible effects of climate warming on selected populations of polar  bears (Ursus maritimus) in the Canadian Arctic. Arctic 59, 261-275 (2006).

             2) Archer, D. 2005. Fate of fossil fuel CO2 in geology time, J. Geophys. Res.,110, C09S05, doi:10.1029/2004JC002625

3)    Global warming threatens marine life. By Jim Lobe http://www.twnside.org.sg/title/marine-cn.htm

4)     How Global Warming Could Cause Animals to Shrink. ScienceDaily (Nov. 2, 2009)

http://www.sciencedaily.com/releases/2009/11/091102172247.htm

5)      Amplification of Global Warming by Carbon-Cycle Feedback Significantly Less Than Thought, Study Suggests. ScienceDaily (Jan. 27, 2010)

http://www.sciencedaily.com/releases/2010/01/100127134721.htm