Global Warming

Global Warming - Source: US EPA Source: IPCC Source: IPCC...

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Global Warming
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Volume of Ice in Alpine Glaciers Figure 9.6 9-5 Source: NASA National Snow and Ice Data Center.
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Alpine Glaciers in College Fjord, Alaska Figure 9.2 9-3 Source:Courtesy of Carla W. Montgomery.
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Hubbard Glacier Pre-Dam
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Hubbard Glacier Dam
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Hubbard Glacier 2004
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Is The Greenland Ice cap Melting?
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Global Climate Change?
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11 What Is Global Warming? NOAA Slides by Forecast Systems Laboratory.
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18 Long-Term Climate Change (cont.) NOAA Slides by Forecast Systems Laboratory.
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Climate has Changed, and Will Continue to Change Climate has changed over the past century – Global mean temperature has increased .5-1 o F – Global sea level has risen 4-10 inches – Global precipitation over land has increased 1% “The balance of evidence suggests a discernible human influence on global climate” (IPCC, 1995) Climate is expected to continue to change in the future – Projected temperature increase of 3.6 o F by 2100 (1.8-6.3 o F) – Projected sea level rise of 20 inches by 2100 (6-38 inches) – Likely increase in precipitation intensity
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Unformatted text preview: Source: US EPA Source: IPCC Source: IPCC Atmospheric Concentrations of Greenhouse Gases are Increasing Atmospheric concentrations of greenhouse gases have increased significantly since the industrial revolution Carbon dioxide +30%; Methane +100%; Nitrous oxide +15% Greenhouse gas concentrations projected to reach double pre-industrial levels by about 2060 Many greenhouse gases remain in atmosphere for a long time (decades to centuries ) Projected CO 2 concentration levels are significantly higher than any observed over the past 160,000 years Source: US EPA Source: IPCC Climate Change Impacts on Water Resources Precipitation changes and increased evaporation can affect: water supplies water quality and drinking water water uses: hydropower, irrigation, fisheries Floods more likely due to more intense rainfall Droughts likely to be more severe due to increased evaporation and drier soils Source: US EPA...
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This note was uploaded on 07/17/2008 for the course GS 100 taught by Professor Leavell during the Spring '06 term at Ohio State.

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Global Warming - Source: US EPA Source: IPCC Source: IPCC...

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