climate change (and you) uf bcn 1582 august 29, 2006 mark van soestbergen icbe
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Climate Change Climate Change (and You)(and You)
UF BCN 1582August 29, 2006
Mark van SoestbergenICBE
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Carbon DioxideCarbon Dioxide
Intercepts infrared waves going into space
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Gasoline is 85.5% carbonGasoline is 85.5% carbon
1 gallon of conventional gasoline becomes172 cubic feet / 4.87 cubic meters of CO2
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Humans add about 25 billion tonne Humans add about 25 billion tonne carbon dioxidecarbon dioxide
to the atmosphere each yearto the atmosphere each year
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We are here
Globally, temperatures are projected to rise an additional 2 – 5°C in the 21st Century
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Summer Arctic Sea Summer Arctic Sea IceIce
19791979
20002000
NASA Goddard Space Flight Center
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Greenland is Greenland is meltingmelting
NY Times June 8, 2004
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Summers will be scorchersSummers will be scorchers
These maps show the projected increase in average daily July heat index relative to the present. The largest increases are in the southeastern states, where the models projects increases of more than 25°F.
A July day in Atlanta that now reaches 105°F would reach 115°F in the Hadley model, and 130°F in the Canadian model.
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Fabian, Sep, 2003
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The oceans have absorbed about 30 times more heat than the atmosphere since 1955
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Expected sea level increase 21st Century:+ 1.2 meter
Florida + 5 meter, unavoidable w/out action
Courtesy: PBS
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The atmosphere now holds 30% more The atmosphere now holds 30% more carbon than a century ago.carbon than a century ago.
8
4.7
Humanemission rate in billiontC/yr
time
equilibrium
Latent atmospheric Carbon isabout 188 billion ton
Earth absorption ratein billiontC/yr de-carbonization pathway
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-Nice meeting all of you!
this presentation can be downloaded from:
www.icbe.com/about/uf/lectures/index.htm
http://en.wikipedia.org/wiki/Paleocene-Eocene_Thermal_Maximum
Mark van [email protected]
352 367 1144 tel
352 335 9140 fax
Toward Climate Stability™