Nov 13 lecture 4 bloom SAS1_08Lecture4

Nov 13 lecture 4 bloom SAS1_08Lecture4 - Coming Winter...

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Unformatted text preview: Coming Winter Quarter, 2009 Coming Winter Quarter, 2009 Science & Society 25, CRN 50427 Science & Society 25, CRN 50427 50438 50438 Global Climate Change Global Climate Change : : Convergence of Geophysical, Biological, & Social Sciences Convergence of Geophysical, Biological, & Social Sciences Lectures: Tues. & Thurs. 5:10 Lectures: Tues. & Thurs. 5:10 6:00 pm, Social Sci. 1100 6:00 pm, Social Sci. 1100 Discussion: One hour per week at various times Discussion: One hour per week at various times This 3-unit GE course (credit for Diversity, Social Sciences, Science-Engineering, & Writing) will explore the geophysical factors that influence climate and assess the biological and sociological consequences of climate change. Topics include methods used by different scientists, decision making under uncertainty, complexity of international affairs, and cultural views of risk. Global Climate Change Global Climate Change Is Earths climate changing rapidly? Do human activities have a role? Is warming influencing the biosphere? Can humans mitigate climate change? Is economic growth sustainable? Is international cooperation effective? Will societies adjust? Global Climate Change Global Climate Change Is Earths climate changing rapidly? Do human activities have a role? Is warming influencing the biosphere? Can humans mitigate climate change? Is economic growth sustainable? Is international cooperation effective? Will societies adjust? 2.4 1.6 0.0 0.8 Road transp. Refineries Other Air & sea transp. 1970 1978 1986 1994 2002 Year Carbon emissions (Gt C y 1 ) Resident. & serv. Electricity Industry Deforestation Coal 6.05 Nuclear electric power 2.41 Unaccounted for 0.13 Transportation 0.01 Direct use 0.16 Petroleum 0.20 Other gases 0.05 T & D losses 0.38 Power plant use 0.21 Other 0.05 Net imports 0.02 Natural gas 2.07 Renewable energy 1.25 Residential 1.35 Commercial 1.30 Industrial 1.00 Retail sales 3.66 End use 3.82 Net generation of electricity 4.05 Gross generation of electricity 4.27 Conversion losses 7.83 Energy consumed to generate electricity 12.09 Fossil fuels 8.38 Coal Natural gas Nuclear Renewables Petroleum Electricity generation (10 MW-h) 3 2 1 1980 1990 2000 2010 2020 2030 Year Coal Oil Gas CCS Solar Nuclear Wind Hydro 320 240 160 80 Carbon emission (kg C MWh 1 ) 40 80 120 160 200 240 Cost ($ MWh 1 ) Biomass 500 100 200 300 400 20 30 40 50 60 Fuel efficiency (%) G eenhouse gas emissions (kg C MW-h 1 India China U.S. SOA R&D New China New India 15 MPa 540C 25 MPa 600C 35 MPa 760C Subcritical Super- critical Ultrasuper- critical Global Climate Change Global Climate Change Is Earths climate changing rapidly?...
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Nov 13 lecture 4 bloom SAS1_08Lecture4 - Coming Winter...

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