Citations and References

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Berger A. and Loutre M.F. (1991). Insolation values for the climate of the last 10 million of years. Quaternary Sciences Review, 10(4), 297-317.

Fetterer, F., K. Knowles, W. Meier, and M. Savoie. (2009). Sea Ice Index. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.

Morello, L and ClimateWire 2011 Polar ice sheets melting faster than predicted. Scientific American, March 9. Retrieved from

NASA's Goddard Institute for Space Studies. (n.d.). GISS Surface Temperature Analysis (GISTEMP). Retrieved from

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Berger, A. (1978). Long-term variations of daily insolation and quaternary climatic changes. Journal of Atmospheric Science, 35(12), 2362-2367.