14. So Are Renewables Affordable? 24.34 Solar 23.37 Wind 0.67 Hydroelectric 0.89 Biomass 1.59 Nuclear 0.25 Natural Gas 0.44 Coal Subsidy $ Fuel Source Source: Energy Information Administration Subsidies per Megawatt Hour
20. Massive Effort Needed to Meet Emissions Goals Source: Clarke, L. et al. 2006. Climate Change Mitigation: An Analysis of Advanced Technology Scenarios . Richland, WA: Pacific Northwest National Laboratory. Cumulative global emissions reductions ranging from about 1,100 to 3,700 gigatons of CO 2 equivalent would be need over the course of the century to meet a range of atmospheric concentration goals (450 to 750 ppm). 1st GtC Avoided CO 2 Emissions (GtCO 2 /yr) Cumulative Emissions Cumulative Avoided Emissions Unconstrained Emissions Scenario CO 2 Stabilization Scenario ≈ 1,100 to 3,700 gigatons of cumulative CO 2 emission reductions will be needed to meet a range of stabilization scenarios (≈750 ppm to 450 ppm). Time 0
21. How Big is One Gigaton* of CO 2 ? *Gigaton = 10 9 Metric Tons Install 1,000 sequestration sites like Norway’s Sleipner project (1 MtCO2/year)—Only 3 sequestration projects of this scale exist today. Geologic Sequestration Build 273 “zero-emission” 500 MW coal-fired power plants—Equivalent to about 7% of current global installed coal-fired generating capacity of 2 million MW. Coal-Fired Power Plants Convert a barren area of about 4,800,000 km 2 —Equivalent to about 2 times the size of the United Kingdom. Biomass Fuels from Plantations Install capacity to produce 273 times the current global solar PV generation instead of new coal-fired power plants without CCS. Solar Photovoltaics Actions that Provide One Gigaton CO 2 / Year of Mitigation or Offsets Technology Convert a barren area of about 900,000 km 2 —Equivalent to more that the size of Germany and France combined. CO 2 Storage in New Forest Install capacity to produce 14 times the current global wind generation capacity (about 74 GW) instead of new coal-fired power plants without CCS—Equivalent to more than 1 million 1 MW wind turbines. Wind Energy Deploy 273 million new cars at 40 miles per gallon (mpg) instead of 20 mpg (or at 14 km/L instead of 7 km/L). Efficiency Build 136 new nuclear power plants of 1 GW each instead of new coal-fired power plants without CCS—Equivalent to about one third of existing worldwide nuclear capacity of 375 GW. Nuclear
22. 2050 Reference Emissions Annex I Countries Non-Annex I Countries Annex I Emissions at 20% 2000 Emissions Annex I Emissions at 50% 2000 Emissions -100% -84% -59% -62% -71% -85% 1 Measured as MMTCO 2 per million people, excluding LULUCF. 2 50% of 2000 global CO 2 emissions equals 12.3 Gt. 3 Equals reduction from 2050 reference for that group ( i.e ., Annex I or Non-Annex I). Source: Climate Change Science Program . 2007. Scenarios of Greenhouse Gas Emissions and Atmospheric Concentrations (MINICAM Model results). Annex I Emissions at “0” To Achieve a 50% Reduction in Global CO 2 Emissions by 2050, Per Capita Emissions from Developing Countries Must Go Down Percent Reductions from 2050 Reference 3 2000 Annex I Reference Emissions/ Capita (12.7) 2000 Non-Annex I Reference Emissions/ Capita (4.4) 2050 Annex I Emissions/ Capita (0) 2050 Non-Annex I Emissions/ Capita (1.7) 2050 Annex I Emissions/ Capita (2.1) 2050 Non-Annex I Emissions/ Capita (1.3) 2050 Annex I Emissions/ Capita (5.2) 2050 Non-Annex I Emissions/ Capita (0.7) CO 2 , Emissions per Capita (MMTCO2 per million pop.) 2000 2000
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24. For More Information Competitive Enterprise Institute GlobalWarming.org Institute for Energy Research MasterResource Blog Planet Gore Blog on National Review Online
26. Scale of Changes in Transport Sector Source: International Energy Agency, Energy Technology Perspectives 2008, Scenarios and Strategies to 2050 .
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28. Environmental Disaster of Biofuels Land Use Scenario ≈ 550 ppmv Source: Global Energy Technology Strategy, Addressing Climate Change: Phase 2 Findings from an International Public-Private Sponsored Research Program , Battelle Memorial Institute, 2007. Land Use Scenario with 0.5% annual agricultural activity growth. By 2050, land use required for bioenergy crops may account for approximately 4 to 5% of total land use; by 2095 approximately 20%.