30_sealevel-1 - Sealevelrise GS222D.Lund Lecture30...

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Sea level rise GS222 – D. Lund Lecture 30
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Overview - this lecture Intergovernmental Panel on Climate Change  (IPCC) Eustastic vs. isostatic sea level rise Thermal expansion and melting of glaciers
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Inter-governmental Panel on  Climate Change Established in 1988 by the World Meteorological  Organization and the United Nations  Environment Program Primary activity is to assemble and publish  assessments of the science and impacts of  climate change A scientific intergovernmental body Role is to evaluate risk of climate change by  human activity (fossil fuel burning)
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Inter-governmental Panel on  Climate Change The premier source of information on climate  change IPCC has published 4 assessment reports, in  1990, 1995, 2001, and 2007 Assessments based on peer-reviewed scientific  literature Written by top scientists from around the world,  incorporates inputs from thousands of scientists
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Fourth Assessment Report (AR4) warming and sea level rise will occur for centuries,  due to long residence time of CO 2  in the  atmosphere   warming of the climate system is unequivocal most of the temperature increase since the mid  20 th  century is very likely due to anthropogenic  greenhouse gases probability of natural cause is < 5% came to the following conclusions:
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NASA, GISS
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Fourth Assessment Report (AR4) by 2100, temperatures will rise by 2 to 12 °F,  sea level will rise by 7 to 24 inches amount and rate of temperature and sea level rise  are highly dependent on emissions scenarios came to the following conclusions: atmospheric carbon dioxide now higher than  any time in the last 650,000 years
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30_sealevel-1 - Sealevelrise GS222D.Lund Lecture30...

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