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| First Page | Document Content | |
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 Date: 2013-12-12 17:23:05Fossil fuel Natural gas Global warming Hydraulic fracturing Environment Climatology Greenhouse gas Atmospheric sciences |
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| First Page | Document Content | |
|---|---|---|
Date: 2013-12-12 17:23:05Fossil fuel Natural gas Global warming Hydraulic fracturing Environment Climatology Greenhouse gas Atmospheric sciences |
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