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THE WORLD IS NOT RUNNING OUT OF OIL!!!! (That is a problem)
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Conventional Oil Production
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The New Oil Fields
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Coal can be converted to liquid fuel
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We are running out of atmosphere faster than we are running out of fossil fuels
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Oil + Oxygen CO 2 + water + energy Rainforest + Oxygen CO 2 + water + fire Food + Oxygen CO 2 + water + satisfaction How humans add carbon dioxide
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The air you breathe: Nitrogen (79%) Oxygen (20%) Carbon Dioxide?-- Trace
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Increasing Carbon Dioxide: the Greenhouse Effect Image source: DOE website
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1896: Crazy Swede accurately predicts impact of greenhouse gases? Svante Arrhenius– discoverer of the Greenhouse Effect Predicted 7-11 degree warming with doubling of carbon dioxide Current predictions similar
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Carbon dioxide directly measured since late 1950s
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Sources of carbon dioxide released by US Image source: DOE website
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DIRECT OBESERVATIONS (Fig SPM-3, IPCC 2007)
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Reconstructed global temps (source: National Research Council 2006)
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Carbon dioxide levels 1850: 270 ppm Now: 384 ppm 2009: 388 ppm 2100: 550+ ppm If we burned all known fossil fuel reserves: 1900 ppm
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Future Temperature in Minnesota Year: 2100 CO 2 : 550 ppm Temp increase- global surface average (IPCC 2007) Range= 3.6-8.1 F Mean = 8.1 F for land, 5.2 for ocean Mean = 5.4 F for Central America, 14.4 F for Northern Canada Temp increase in MN Much greater than global average in winter Slightly greater during summer
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Precipitation changes? Much harder to predict than temperature Consensus estimate for Upper Midwest (IPCC 2001): –5-20% wetter winters –5-20% drier summers
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Future drought may be severe NAST 2000
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Climate Change in Minnesota
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Will Minnesota become one big prairie? Minnesotans for an Energy Efficient Economy http://www.me3.org/issues/climate/
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Pollen record reveals past vegetation Arabidopsis pollen
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History of Forest Movement in Minnesota Pollen and charcoal suggest that prairie- forest border has swung wildly “Grassiness” last peaked 6000-9000 years ago with warm dry climate “Woodiness” waxes and wanes on decade to century scale. Source: Clark et al. (2001) Ecology 82: 620-636.
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12,000 Years of the Prairie-Forest Border (history of the Clark et al. 2001 study sites) North Dakota MinnesotaWisconsin 12,000Forest 9,000Prairie Forest 6,000PrairiePrairie / Forest Mix Forest 3,000PrairieForest NowPrairieForest
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How can this be avoided?
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What to do? Pacala and Socolow 2004 advocate 7 x 1GT “stabilization wedges”
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