Energy: Perspective. Homework, see: Professor Nate Lewis, Global Energy Perspective http://nsl.caltech.edu/energy.html. Where is the energy coming from?. current power consumption is ~ 13 TW. see: http://nsl.caltech.edu/energy.html. Projections. Is this path sustainable?.
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Professor Nate Lewis, Global Energy Perspective
current power consumption is ~ 13 TW
Remember that all of this fossil fuel combustion is releasing CO2. How high will CO2 concentrations go? That, of course, depends on what actions we take!!!!
WRE figure: for Wrigley, Richels, and Edmonds
Wrigley, T.M.L., Richels, R., & Edmonds, J. (1996) Economic and
environmental choices in the stabilization of atmospheric CO2
concentrations. Nature, 379, 240-243
Emissions pathways that lead to CO2 stabilization levels:
What is the energy mix pathway that leads to stabilization of atmospheric CO2 at 450 ppm? WRE 450 path
Higher WRE number means that we are using high intensity fossil fuel mix, and slowly transitioning to non-CO2 emitting energy pathways.
How much CO2 are we going to put in the atmosphere?? That is up to YOU!!
Journal of Climate2003, 16, 206-223
Mauna Loa Data
Fossil Fuel Use and CO2 stabilization
Spiro and Stigliani, Fig. 5.12. p 119 Flow of energy through the U.S. economy in the year 2000 (Values are units of exajoules (1015 J)).
2/3 of energy consumed to produce electricity is lost!!!
Spiro and Stigliani, Fig. 5.13. p 120 Flow of energy from electricity through the U.S. economy in the year 2000 (Values are units of exajoules (1015 J)).