POLS 333 Lec 81 The Oil We Eat
POLS 333 Lec 8 2 Black Gold Versatile, convenient, cheap & powerful 3 spoonfuls = 8 hours manual labor 20 gallons = 2 years! Fourfold increase in pop. since fold increase in yield per acre 10-fold increase in midwest corn yields 80-fold increase in energy inputs US: 60% farming in 1900, 2% today
POLS 333 Lec 8 3 World energy markets Oil: Glue of global economy 37% of all energy, 42% of CO2 GDP growth correlates to oil use 86 MBD in 2010, 2% growth rate (IEA) 2007 = production peak 2/3 reserves in Persian Gulf Major OPEC producers are big food importers Saudi: more than N. & S. America, Europe & former USSR combined (?)
POLS 333 Lec 8 4 Patterns of consumption U.S. led petroleum economy (1859) 5% population, uses 25% world ’ s oil 1/2 efficiency of Japan & W. Europe Response to 1973 & 1979 price hikes: high taxes, massive investment in mass transit “ The American way of life ” 5x world per capita oil consumption Car culture, suburbia, cheap food
POLS 333 Lec 8 5 The Food/Oil Connection 17% of US oil consumption Roughly equivalent to personal driving Fertilizers + refrigeration more than transport 11 cal. energy 1 cal. food Petroleum-based fertilizers, pesticides 1 ton of oil 1.5 tons nitrogen fertilizer Wheat/Oil Exchange Rate From 1:1 (1973) to 14:1 (2006) U.S. imports: 2% in 1940, 55% in 2005
POLS 333 Lec 8 6 Interstate Highway System
POLS 333 Lec 8 7 Mode of Transport BTU per ton-mile Class 1 Railroads341 Domestic Waterborne510 Heavy Trucks3,357 Air freight (approx)9,600 … food miles? Check out:
POLS 333 Lec 8 8 “ Peak Oil ” Hubbert predicted U.S. peak (1970) in 1956 US discoveries peaked in 1930 Depends upon estimate of reserves Colin Campbell, Shell Production has outrun discovery for 30 years 1.8 trillion barrels > USGS: 3 trillion barrels > 2030 IEA (2006): : 2006
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10 US Crude-Oil Production Production is bell-shaped, like the curves Hubbert drew Average price after the peak is 2.6 times higher than before 10 Price Production
POLS 333 Lec 8 11 Mexico Was the #2 supplier of oil to the US Now is #4 Cantarell from >2,000 in 2005 to 860,000 in Jan 2009 to 588,000 in July 2009 Both Mexico & US are in trouble. Mexico: Sale of oil = 40% of federal budget US: Net exports go to 0 in ~2014
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POLS 333 Lec 8 13 Rising Cost of Oil Price volatility Before 2003, 1979 was highest: $100 (2003 $) 1998: $10/barrel 2006: $ : $75 Today: $104 Confluence of factors Increased demand 3.4% in 2004, double the usual China consumption growing by nearly 10%/year DC demand: transport, diet Recession: a mitigating factor Decreased imports in US
POLS 333 Lec 8 14 Source: International Energy Agency, World Energy Outlook 2010.
Shale oil Extracted from rock; high temps. ~3 trillion barrels global reserves Oil sands Heavy crude; Canada & Venezuela ~1.2 trillion barrels (est.) Hydraulic fracturing (natural gas) Particularly relevant to agriculture IEA (2013): US energy independence by 2035 #1 “oil” producer by 2020! BUT: Unconventional Hydrocarbons!
Source: mongabay.com using 2009 data from Energy Information Administration Renewable energy trends
Is it enough? Source: (from IEA data) U.S. energy consumption (2007)
POLS 333 Lec 8 18 World food crisis 2008: High oil prices > biofuel subsidies > hunger 1/4 U.S. corn > ethanol ($.45/gallon subsidy) Intervening variables Trade liberalization & subsidies Financialization Food as % of income US = 11%; 16% for poorest 20% DCs = 40-70% UN Special Task Force: “ US & EU biofuels policies are irresponsible ”
POLS 333 Lec 8 19 Food production & climate change
POLS 333 Lec 8 20 Projected impacts of climate change on agriculture (2080)