Environmental and tribal groups asked Minnesota regulators on Tuesday to reconsider their approval of Enbridge Energy's plans to replace its aging Line 3 crude-oil pipeline across northern Minnesota.

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A federal appeals court has ruled in favor of the government in a dispute over an oil pipeline that runs through a national forest in Michigan's Oscoda County.

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The Minnesota Public Utilities Commission meets Thursday to make some important decisions on how it will proceed with Enbridge Energy's proposed Sandpiper oil pipeline from the Bakken oil fields of North Dakota across Minnesota to Superior, Wis.

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Battles over climate change and oil pipelines come to a head on three fronts in Minnesota this week.

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An alternative budget proposal assembled by environmental advocates suggests lawmakers could save Wisconsin taxpayers nearly $500 million by cutting highway expansion projects planned for the next two years. The savings could instead be used to pay for long-deferred local projects while also reducing the state’s increasing reliance on bonds to pay for roadwork.

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Environmentalists warn that manure spills are putting Wisconsin's water supply at risk and that the proliferation of so-called "megafarms" will lead to more pollution accidents.

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Environmentalists balked Friday at Republican Gov. Scott Walker's plans to sue the federal government over new limits on power plants' carbon emissions, saying the governor is ignoring climate change and simply wants to show he opposes government regulation as he mulls a presidential bid.

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A railroad has agreed to pay $625,000 to settle allegations that it failed to adequately clean up a 2008 oil spill that damaged the shoreline and aquatic life in the Mississippi River between Iowa and Wisconsin.

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Tribal and environmental groups are suing the U.S. State Department for approving a plan by a Canadian pipeline company to increase the flow of crude oil from Alberta into Minnesota.

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With the November election six weeks away, neither Republican Gov. Scott Walker nor Democratic challenger Mary Burke has put forward any grand strategies for new environmental or outdoors policies.

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