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Lecture 1 - Introduction - • A wedge redirects the flow...

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Lecture 1 - Introduction Barry Commoner’s Four Laws for the Earth’s Ecology “Everything is connected to everything else” “Everything must go somewhere” “Nature knows best” “There is no such thing as a free lunch” Keeling Curve Atmospheric Carbon Dioxide o Rise in Carbon Dioxide Level Every Year Emissions Past Emissions Graph Stabilization Triangle o Currently Project Path of 14 billion tons of carbon emitted per year at 2054 o Interm Goal wanted at 7 billion tons of carbon emitted per year at 2054 o Beat doubling or accept tripling Ramp = Delay Flat = Act Now Ramp will happen if we continue to do business as usual o Split into 7 Wedges to Reduce Emissions What is a “Wedge”? A “wedge” is a strategy to reduce carbon emissions that grows in 50 years from zero to 1.0 GtC/yr.
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Unformatted text preview: • A wedge redirects the flow of 25 Gt(C) in its first 50 year. This is 2.5 trillion dollars at $100/t(C). • A “solution” to the Greenhouse problem should have the potential to provide at least one wedge. Fill the Stabilization Triangle with Seven Wedges • Renewable Electricity and Fuels • Energy Efficiency and Conservation • Fuel Switch • Nuclear Fission • Forests and Soils • CO2 Capture and Storage Course Description • Review the energy resources available to maintain human activities on the Earth. • For each energy resource, we will consider: o Physical and chemical properties of the energy resource o Technologies required for extraction of the energy and its energy content o Environmental impact of the extraction, transfer and use of the resource...
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  • Winter '08
  • RodEwing
  • carbon emissions, carbon dioxide level, atmospheric carbon dioxide, Past Emissions Graph, Stabilization Triangle

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