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Search Results ... (4195)
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/aai-files/assets/Environment/Climate C/Change/transport.jpg
/aai-files/assets/Environment/Climate C/Change/transport.jpg
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/aai-files/assets/Environment/Climate C/Change/VRT.jpg
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/aai-files/assets/Environment/Climate C/Change/Ireland.World.jpg
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/aai-files/assets/Environment/Climate C/Change/car02.jpg
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/aai-files/assets/Environment/Climate C/Change/construction.jpg
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/aai-files/assets/Environment/Climate C/Change/013.jpg
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/aai-files/assets/Environment/Climate C/Change/Map-Europe-Red.jpg
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/aai-files/assets/Environment/Climate C/Change/Industrial-pollution.jpg
/aai-files/assets/Environment/Climate C/Change/Industrial-pollution.jpg
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Road Vehicles and Automotive Fuels 1990-2006
Road Vehicles and Automotive Fuels 1990-2006
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Courtesy of the EPA
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Atmospheric concentrations of important long-lived greenhouse gases over the last 2,000 years. Increa
... years. Increases since about 1750 are attributed to human activities in the industrial era. Concentration units are parts per million (ppm) or parts per billion (ppb), indicating the number of ...Atmospheric concentrations of important long-lived greenhouse gases over the last 2,000 years. Increa
Atmospheric concentrations of important long-lived greenhouse gases over the last 2,000 years. Increases since about 1750 are attributed to human activities in the industrial era. Concentration units are parts per million (ppm) or parts per billion (ppb), indicating the number of molecules of the greenhouse gas per million or billion air molecules, respectively, in an atmospheric sample.(Source: IPCC AR4, WGI, p.124)
Copyright IPCC, courtesy EPA.
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