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Montana-Dakota Utilities Co. has committed, through a Memorandum of Understanding between the Edison Electric Institute and the Department of Energy, to reduce CO2 emission intensity by 3-5% by 2010.
Montana-Dakota Utilities Co. has also joined the U.S. Environmental Protection Agency's Voluntary SF6 Emission Reduction Program. Sulfur hexafluoride (SF6) is an inert gas used as an insulator in electrical equipment that has been implicated as a potent greenhouse gas. Montana-Dakota reduced its emissions of SF6 from equipment leaks by 31 percent in 2006.
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