|This article relies on references to primary sources. (January 2014)|
Don J. Easterbrook (born January 29, 1935, in Sumas, Washington) is Professor Emeritus of Geology at Western Washington University. He has B.S., M.S. and PhD degrees from the University of Washington and has studied global climate change for five decades. Dr. Easterbrook holds that global warming is primarily caused by natural processes. He edited Evidence-Based Climate Science (2011), a book which contends that increased CO2 emissions are not the cause of climate change. He predicted lower global temperatures than the IPCC temperature projections. He appeared on the Headline News Glenn Beck program and has been interviewed for the New York Times.
Cyclical nature of climate variability
Easterbrook gave a speech at the 2006 Geological Society of America annual meeting, in which he stated:
"If the cycles continue as in the past, the current warm cycle should end soon and global temperatures should cool slightly until about 2035, then warm about 0.5°C from ~2035 to ~2065, and cool slightly until 2100. The total increase in global warming for the century should be ~0.3 °C, rather than the catastrophic warming of 3-6°C (4-11°F) predicted by the IPCC."
While IPCC was predicting global warming, Easterbrook (2001) predicted three decades of cooling due to the Pacific decadal oscillation (PDO) shifting from its warm to cool phase. He correlated PDO with climatic changes over the last 500 years.
"The IPCC has predicted a global temperature increase of 0.6°C (1°F) by 2011 and 1.2°C (2°F) by 2038, whereas Easterbrook (2001) predicted the beginning of global cooling by 2007 (± 3 yrs) and cooling of about 0.3–0.5°C by 2040."
He presented his research on glacier fluctuations, global climate change, and ocean temperature changes at the International Conference on Climate Change in New York (2009). In a summary of this work, Easterbrook wrote: "We are entering a solar cycle of much reduced sunspots, very similar to that which accompanied the change from the Medieval Warm Period to the Little Ice Age, which virtually all scientists agree was caused by solar variation. Thus, we seem to be headed for cooler temperatures as a result of reduced solar irradiance."
- Don J. Easterbrook (2011). Evidence-Based Climate Science, 1st ed. Elsevier. p. 416. ISBN 978-0-12-385956-3. Elsevier preview, Google preview
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- Glenn Beck, CNN: Transcript, March 13, 2007.
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- Easterbrook, D.J., 2001, The next 25 years: global warming or global cooling? Geologic and oceanographic evidence for cyclical climatic oscillations: Geological Society of America, Abstracts with Program, v. 33, p. 253.
- Easterbrook, D.J., 2008, Correlation of climatic and solar variations over the past 500 years and predicting global climate changes from recurring climate cycles: International Geological Congress, Oslo, Norway.
- Easterbrook, Don J. 'Global Warming' is Over: Geologic Oceanographic and Solar Evidence for Global Cooling in the Coming Decades, International Conference on Climate Change, New York, 2009
- International Conference on Climate Change, New York, 2009.
- Easterbrook, Don (n.d.). "RECENT GLOBAL COOLING: SUMMARY". www.edu. Archived from the original on 2008-09-20. Retrieved 2014-07-08.