1. https://www.planetseed.com/files/flash/scien ce/features/earth/climate/en/challenge/index. htm?width=835&height=680&popup=true

2. Check this out! Follow this link to understand why concentrations and temperatures continue to rise even when CO2 levels are held constant or even decreased. – https://www.planetseed.com/files/flash/science/f eatures/earth/climate/en/challenge/index.htm?wi dth=835&height=680&popup=true https://www.planetseed.com/files/flash/science/f eatures/earth/climate/en/challenge/index.htm?wi dth=835&height=680&popup=true

5. Sources Slide #1 – http://eo.ucar.edu/staff/rrussell/climate/modeling/co2_climate _model.html http://eo.ucar.edu/staff/rrussell/climate/modeling/co2_climate _model.html Slide #2 – IPCC, 2007: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M.Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. Slide #3 – http://eo.ucar.edu/staff/rrussell/climate/modeling/ipcc_sres_sc enarios.html http://eo.ucar.edu/staff/rrussell/climate/modeling/ipcc_sres_sc enarios.html