climate change and the carbon...
TRANSCRIPT
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Climate Change and the Carbon Cycle
David Schimel Senior Scientist
NASA Jet Propulsion Lab California Institute of Technology
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Background
• Graduate, Colorado State University
• 20 years at National Center for Atmospheric Research, Boulder, Colorado
• Founding Director, Max-Planck-Institute for Biogeochemistry, Jena, Germany
• Co-recipient, Nobel Peace Prize as IPCC Convening Lead Author for the Carbon Cycle
• Fellow, American Geophysical Union
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Carbon dioxide over
the past decades
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Increasing methane
in the atmosphere
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Carbon dioxide over the past millenia
From: USGCRP Global Climate Change Impacts in the United States 2009 Report
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Comparing different sources of climate change WGI_AR5_Fig8-15.jpg (JPEG Image, 2106 × 1331 pixels) - Sc... http://www.climatechange2013.org/images/figures/WGI_AR5_...
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From: IPCC AR5 2014
CH4 is a Very Potent GHG in the Short Term
Global Warming Potential (GWP) of
Methane (relative to CO2)
Climate Carbon
Feedback
Not included Included
20-year 83 86
100-year 28 34
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Climate futures depend mostly on human decisions (like the one to be made by this Commission)
WGI_AR5_Fig12-5.jpg (JPEG Image, 1044 × 701 pixels) http://www.climatechange2013.org/images/figures/WGI_AR5_...
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From: IPCC AR5 2013
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Global temperatures
From: NOAA National Climate Data Center
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Temperature change in Colorado
From National Climate Data Center, NOAA
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Colorado’s climate: Drought
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Colorado’s climate: Fire Risk fd_class.png (PNG Image, 815 × 607 pixels) - Scaled (55%) http://www.wfas.net/archive/www.fs.fed.us/land/wfas/archive/2...
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From: USFS Wildland Fire Assessment System
fd_class.png (PNG Image, 815 × 607 pixels) - Scaled (55%) http://www.wfas.net/archive/www.fs.fed.us/land/wfas/archive/2...
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Warming temperatures stack the deck
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Climate change puts Colorado at risk
• Risk to agriculture • Threats to wildlife and bio-diversity • Threats to fauna • Threats to recreation (skiing, fishing, hunting) • Threats to tourism due to impacts at parks • Worsening ozone • Higher risk of flooding • Higher risk of fires • Great risk of infestations, leading to other damage
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Climate change increases the odds of extreme conditions
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Think globally-act locally
Climate change is a global problem, but fixing it must be done one well,
one pipeline, one state at a time