1. Figure by (and permission obtained from) Michael Ernst, The Woods Hole Research Center, Downloaded from: http://www.whrc.org/resources/online_publications/warming_earth/the_greenhouse_effect.htm Greenhouse Effect

2. Figure by (and permission obtained from) Michael Ernst, The Woods Hole Research Center, Downloaded from: http://www.whrc.org/resources/online_publications/warming_earth/the_greenhouse_effect.htm

3. Source: R. F. Keeling, S.C. Piper, A.F. Bollenbacher and S. J. Walker; Scripps CO 2 Program (http://scrippsco2.ucsd.edu), Scripps Institution of Oceanography (SIO), University of California, La Jolla, California, USA 92093-0244; Downloaded from: http://scrippsco2.ucsd.edu/graphics_gallery/mauna_loa_record/mauna_loa_record_-_color.html. Permission obtained from S. Piper, CO 2 Research Center, SIO.http://scrippsco2.ucsd.edu http://scrippsco2.ucsd.edu/graphics_gallery/mauna_loa_record/mauna_loa_record_-_color.html Year Rise in Greenhouse Gases

4. Source: W.R. Ruddiman, Earth’s Climate; Past and Future, 2008, 2nd edition, W. H. Freeman and Company, New York, NY, 388 pg. Climate System

5. Source: W.R. Ruddiman, Earth’s Climate; Past and Future, 2008, 2nd edition, W. H. Freeman and Company, New York, NY, 388 pg.