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Notes 2 - Jan 27 Interlinked Environmental Problems The...

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Jan 27 Interlinked Environmental Problems: The Case of Global Warming -1 of 2 major problems covered in this course Global Warming Basics -Our activities are influencing broad global geochemical cycles around the world. -Changes in gases in the atmosphere -Heat-trapping gases -If these elements increase in heat and are absorbed, there will be an affective warming of the earths system -CO2 The Greenhouse Effect -Increase concentrations in the atm. of these heat absorbing molecules (co2, methane, nitrous oxides) will lead to an increase in temperature Climate Changes 1. Warming of atmosphere and earth’s surface 2. Melting of ice caps at the poles and sea level 3. Changes in the precipitation increases in some places and decreases in others 4. More energy in atmosphere more violent weather (storms, hurricanes, etc.) -Rates of CO2 rise, temperature increase and sea level rise observed in 1995-2005 higher than predicted in early 1990s -Faster increase in CO2 concentrations than predicted
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