ES 116 Lecture Notes - ES116 02:02 PointstoCover...

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ES 116 02:02 Points to Cover: 1. Announcements 2. Course Intro 3. 50 year thinking the world in the 1950s o WWII ended the decade before o GM is the model corporation in the world o Cold War ramping up o Castro takes power in Cuba o China is experiencing massive famine o US economy dominates the world o LA County is #1 ag county in the US o Oil is cheap, and nuclear will be “too cheap to meter” so, energy is not a  major limiting factor. o 90% of the oil consumed by the human race since 1958 o since 1984 50% o water policy is rather straightforward o man on the moon within a decade Stein’s Law o “Things that can’t go on forever, don’t”-Herb Stein 50 year Vision
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o 50 years out: the vision o Baseline: where are we now? o A path from here to there Elements o Profitable, productive businesses o Capital formation o Livable communities o Social equity o Renewable energy base/net carbon negative Dangerous Anthropogenic Interference: o “The world is already experiencing ‘dangerous anthropogenic interference  in the climate system’.  The question now is whether we can avoid  catastrophic interference”- John Holdren Definitions of Sustainability: o Our Common Future- “Sustainable development is development that  meets the needs of the present without compromising the ability of future  generations to meet their own needs”-The World Commission on  Environment and Development Three Elements of Sustainability o Environment o Equity or Society o Economy Sustainable development also means using resources reasonably and  efficiently. It means approaching development in a way that examines environmental  implications up front and accounts for them. It means preventing pollution in the first instance. Two kinds of limits (Herman Daly)
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o Bio-physical o Ethico-social Historic Transitions Film, The Green Plan: 4. Sustainability  5. Green Plans Film
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10/5/10 02:02 The Climate Challenge The Greenhouse Effect Solar radiation passes through the clear atmosphere Most radiation is absorbed by the Earth’s surface and warms it Some solar radiation is reflected by the Earth and the atmosphere Infrared radiation is emitted from the Earth’s surface. Some of the infrared radiation passes through the atmosphere, and some is  absorbed and re-emitted in all directions by greenhouse gas molecules.  The  effect of this is to warm the Earth’s surface and the lower atmosphere Potential Climate Change Impacts on Water Resources Acceleration of the hydrologic cycle: and increased precipitation on a global  average basis
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