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UMass Lowell- Researchers Study Greenhouse Gases Emitted by Wetlands

When someone mentions greenhouse gases, chances are your first thought would be carbon dioxide (CO2). Although CO2 emissions get most of the media attention with regard to global warming, methane (CH4) - a colorless, odorless and highly flammable gas that is a major component of natural gas - accounts for about 25 percent of this warming, and the level of atmospheric CH4 is currently increasing at a rate of about 1.0 percent per year. Much of the natural flux of methane to the atmosphere is from freshwater wetlands, which dominate northern latitudes. More...

11/5/07