Ecology 8 - Climate change The basics 2007 Roadmap Climate...

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1 Climate change: The basics 2007 Roadmap Climate record Natural drivers of climate change Anthropogenic drivers of climate change Global-scale climate change scenarios Introduction to biological impacts IPCC 2007
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2 Data: Jones et al., 1998; Mann et al., 1999; Crowley and Lowery, 2000; Briffa et al., 2001; Esper et al., 2002 ; Mann and Jones, 2003; Jones and Mann, 2004; Huang, 2004; Moberg et al., 2005; Oerlemans, 2005 Slide: R. Dunbar 2005 & 2007 IPCC 2007 Roadmap Climate record Natural drivers of climate change Anthropogenic drivers of climate change Global-scale climate change scenarios Introduction to biological impacts
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3 Ocean Circulation Air Sea Interactions SOHO (NASA & ESA) and the Royal Swedish Academy of Sciences Solar energy: Sunspots? http://www.windows.ucar.edu
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4 Sunspots 11 year cycle Output variation of 0.1% Translates to global temperature change of 0.5C to 1.0C Lack of sunspots in late 1600s corresponds to “little ice age” – Debate as to geographic coverage http://www.windows.ucar.edu
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