Lecture 9 - Energy Conservation

Lecture 9 - Energy Conservation - Out of Gas Out of Gas The...

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Unformatted text preview: Out of Gas Out of Gas The end of the age of oil David Goodstein Energy Myths $3 a gallon is too much to pay Oil companies produce oil. We must conserve energy. When we run out of oil, the marketplace will take over Theres enough fossil fuel in the ground to last for hundreds of years. Nuclear energy is dangerous. The greenhouse effect and global warming are bad. Thermal Radiation 30% reflected 70% absorbed 30% reflected 70% absorbed Earthrise on the Moon 30% reflected 70% absorbed T = 255 K = -18 o C = 0 o F Earths Climate The tilted axis Earths Climate The tilted axis The El Nio Cycle Earths Climate The tilted axis The El Nio Cycle The Thermohaline Flow Earths Climate The tilted axis The El Nio Cycle The Thermohaline Flow The Greenhouse Effect The Greenhouse Effect From the Sun: 343 W/m 2 Water vapor, methane, Carbon dioxide, etc. 88% Greenhouse T = 287K= 14 o C = 57 o F Feedback effects Limiting cases (Preindustrial) Sources of Useful Energy Before 1800: Light from the Sun Coal Oil seeps Swamp gas Nineteenth Century Coal Whale Oil E. L. Drake, 1859, Titusville, PA. Illumination, Lubrication Fuel We can no longer live on light from the Sun We can no longer live on light from the Sun M. King HubbertM....
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Lecture 9 - Energy Conservation - Out of Gas Out of Gas The...

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