GEO 201 Lecture Notes - Lecture 21: Thermohaline Circulation, New York City, Kyoto Protocol
11 Dec 2016
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Document Summary
1917 alexander graham bell coins term greenhouse effect . 1997 kyoto protocol signed (but not ratified by u. s. ) 2008 majority of the world"s population becomes urban. Solving urban problems: systematically defining and analyzing to improve decision-making about the future, setting goals for the future. The american city at a critical juncture: trends are both discouraging (ft. meyers, il and detroit, mi) and promising (new york city, ny and portland, or) An unprecedented challenge: climate change: carbon dioxide cycles through environment, warms climate, net co2 addition through human activities. 1970: 15% fossil fuel use and other sources, 6% from deforestation, decay and peat, 4% ch4 from agriculture, waste and energy, 2. 7% n2o from agriculture and others. 1980: 20% fossil fuel use and other sources, 6% from deforestation, decay and peat, 4% ch4 from agriculture, waste and energy, 3% n2o from agriculture and others.
