Gov. Larry Hogan directed Attorney General Brian Frosh on Wednesday to file suit against the Environmental Protection Agency over the lack of response by regulators to act on pollution complaints dating to 2016 against three dozen out-of-state power plants. The ...

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States in the Regional Greenhouse Gas Initiative, including Maryland, have agreed to reduce the cap on power plant carbon emissions an additional 30 percent below 2020 levels by 2030.

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Environmentalists are raising a stink about Maryland’s approach to air pollution. The Sierra Club says it’s joining six other environmental groups Monday at a public hearing in Baltimore on proposed emergency smog regulations. The Sierra Club says the proposed rules ...

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The Maryland Department of the Environment says Philadelphia-based Sunoco and a suburban Washington water utility have been fined for alleged violations. The department says the Washington Suburban Sanitary Commission paid $55,925 for sewer overflows in 2011. The 163 overflows totaled ...

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PITTSBURGH — In the debate over natural gas drilling, the companies are often the ones accused of twisting the facts. But scientists say opponents sometimes mislead the public, too. Critics of fracking often raise alarms about groundwater pollution, air pollution, ...

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An environmental group said Wednesday that infrared video shows air pollution streaming from natural gas sites that have been sprouting up across the Chesapeake Bay watershed. The Chesapeake Bay Foundation said it sent the videos to the U.S. Environmental Protection ...

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The new owners of the Sparrows Point steel mill outside Baltimore must pay $135,000 for alleged air pollution violations. The Maryland Department of the Environment and the attorney general’s office announced the consent decree with RG Steel on Thursday. The ...

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WASHINGTON — Fire trucks and concrete mixers, semis, heavy-duty pickups and all trucks in between will, for the first time, have to trim fuel consumption and emissions of heat-trapping gases under new efficiency standards announced Tuesday by President Barack Obama. The ...

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Maryland ranks as the fifth-worst state in the country for toxic air pollution caused by coal- and oil-fired power plants, according to the Natural Resources Defense Council. The environmental group and the Physicians for Social Responsibility on Wednesday jointly released ...

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HAGERSTOWN — A Hagerstown cement plant targeted by federal regulators for alleged air pollution says it’s been trying for nearly three years to get a state permit for its increased sulfur dioxide emissions. An attorney for the Holcim cement plant ...

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