Ian Clark (geologist)


Ian D. Clark is a professor in the Department of Earth Sciences at the University of Ottawa, who has been publishing research on geoscience, groundwater and geochemistry since 1982. His graduate work in isotope hydrogeology was at the University of Waterloo and the University of Paris.
Clark, who is not a climatologist, is among the scientists who reject the mainstream scientific consensus on climate change; in the 2007 UK television documentary The Great Global Warming Swindle, he asserted that changes in global temperature correlate with solar activity, saying "Solar activity of the last hundred years, over the last several hundred years correlates very nicely on a decadal basis, with sea ice and Arctic temperatures."

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