Global Warming in the Twenty-First Century: An Alternative Scenario (2000) James Hansen, Makiko Sato, Reto Ruedy, Andrew Lacis, and Valdar Oinas http://pubs.giss.nasa.gov/docs/2000/2...
Modeling the Climatic Response to Orbital Variations John Imbrie and John Z. Imbrie Science, February 29, 1980 "...this model predicts that the long-term cooling trend which began some 6000 years ago will continue for the next 23,000 years" http://www.sciencemag.org:80/cgi/cont...
Oceanic Mechanisms for Amplification of the 23,000-Year Ice-Volume Cycle William F. Ruddiman and Andrew McIntyre Science, May 8, 1981 http://www.sciencemag.org/cgi/content...
Variations in the Earth's Orbit: Pacemaker of the Ice Ages J. D. Hays, John Imbrie, and N. J. Shackleton Science, December 10, 1976 ". . . the long-term trend over the next sevem thousand years is toward extensive Northern Hemisphere glaciation" http://www.sciencemag.org/cgi/content...
Dr. Roy Spencer explains the IPCC models under estimate natural feedbacks plus have sensitivities far more than the natural system has & therefore they greatly exaggerate what effect CO2 has on global temperatures.
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