Fung_FTN_20080131

Fung_FTN_20080131 - A1Y • A1 F1 intensive dependence on...

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Natural Carbon Cycle is perturbed …
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The Land and Oceans have been absorbing half the CO2 emitted to the atmosphere
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The Oceans are a Bottleneck to CO2 uptake (Cumulative) Sabine et al 2004 200 years of fossil fuel emissions have penetrated only 1/4 of the way down the depths of the ocean The additional CO2 has already caused acidification of the oceans
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Copyright ©2007 by the National Academy of Sciences Raupach et al. (2007) Future emission scenarios: XnY X : A =global, B =regional development n : 1 =economic growth 2 =environ stewardship
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Unformatted text preview: A1Y : • A1 F1 : intensive dependence on FF • A1 T : alternative technologies replace FF • A1 B : balanced energy supply between FF and alternatives CO 2 Emissions depend on energy scenarios A1F1 B2 Emission growth 2000-2004 >3% per year ; faster than A1F1 Emission growth 2000-2004 >3% per year ; faster than A1F1 Who Needs All the Lights? Faster emissions for last 5 years Oceans cannot absorb the CO2 fast enough Atmospheric CO2 will increase faster than predicted Global warming will be faster than predicted...
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