Environment

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An Exxon service station sign in Nashville, Tenn., is seen here on April 25, 2017. (Associated Press) **FILE**

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This photo provided by Nest Labs shows the Nest Cam IQ. Nest Labs is adding Google's facial recognition technology to a high-resolution security camera that will provide a glimpse at the potential for increasingly intelligent, internet-connected computers to see and understand everything going on in people's homes. (Nest Labs via AP)

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This photo provided by Nest Labs shows the Nest Cam IQ. (Nest Labs via AP)

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The Brayton Point Power Station, New England's largest and one of its last coal-fired power plants, appears on a cloudy day, Wednesday, May 31, 2017, in Somerset, Mass. The plant, which has been generating electricity since the 1960s along Mount Hope Bay, is shutting down permanently. It's been cited by federal regulators as one of the region's heaviest polluters. (AP Photo/Matt O'Brien)

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The Brayton Point Power Station, New England's largest and one of its last coal-fired power plants, appears on a cloudy day, Wednesday, May 31, 2017, in Somerset, Mass. The plant, which has been generating electricity since the 1960s along Mount Hope Bay, is shutting down permanently. It's been cited by federal regulators as one of the region's heaviest polluters. (AP Photo/Matt O'Brien)

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The Brayton Point Power Station, New England's largest and one of its last coal-fired power plants, appears on a cloudy day, Wednesday, May 31, 2017, in Somerset, Mass., as seen from a pub in Fall River. The plant, which has been generating electricity since the 1960s along Mount Hope Bay, is shutting down permanently. It's been cited by federal regulators as one of the region's heaviest polluters. (AP Photo/Matt O'Brien)

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The Brayton Point Power Station, New England's largest and one of its last coal-fired power plants, appears on a cloudy day, Wednesday, May 31, 2017, in Somerset, Mass. The plant, which has been generating electricity since the 1960s along Mount Hope Bay, is shutting down permanently. It's been cited by federal regulators as one of the region's heaviest polluters. (AP Photo/Matt O'Brien

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In this image provided by the Pentagon, a leaflet the U.S. dropped in Syria warning the forces to leave the area. A Pentagon spokesman said the leaflets told the pro-government forces to leave the established protected zone, which is about 55 kilometers around an area where U.S. and coalition forces have been operating. (Pentagon via AP)

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Visitors pack the pedestrian mall in New York's Times Square as traffic makes it's way down Seventh Avenue, Wednesday, May 31, 2017. The attack that killed an 18-year-old woman and injured 20 other people in Times Square is spurring calls to ban cars from the famed "crossroads of the world." Eight years after Broadway became a pedestrian-only zone at Times Square, some city officials and others say the vehicle restrictions should be expanded to include Seventh Avenue. (AP Photo/Mary Altaffer)

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In this Thursday, May 25, 2017, photo, traffic makes it's way down Seventh Avenue in New York's Times Square. (AP Photo/Mary Altaffer)

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A group of San Diego County restaurants are pledging to cut down on plastic waste by getting rid of plastic straws, the Associated Press reported on Oct. 14, 2017. A dispenser for drinking straws is shown here. (Image: Globe Equipment Company)

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In this May 25, 2017 photo, environmental activists voice their opposition to Indian miner Adani's proposed Carmichael coal mine, outside Parliament House in Brisbane, Australia. The Carmichael coal project, a massive 22 billion Australian dollar ($16.5 billion) mine that Indian resource billionaire Gautam Adani hopes to start work on this year in the remote Galilee Basin, has created an extraordinary clash between the resource and environment sectors. (Dan Peled/AAP Image via AP)

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President Trump has ordered the dismantling of former President Barack Obama's Clean Power Plan that would regulate carbon emissions in U.S. power plants. (Associated Press) ** FILE **

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In this Monday, May 29, 2017, handout photograph suppled by the Summit County Rescue Group, a rescuer looks on as a hiker is pulled up by an Army National Guard Blackhawk helicopter from Quandary Peak near Breckenridge, Colo., after becoming stranded below the summit of the peak the day before because of snow. Two people had to be rescued by the helicopter because dangerous conditions. (Helen Rowe/Summit County Rescue Group via AP)

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This May 22, 2017 file photo shows the control room at the Three Mile Island nuclear power plant in Middletown, Pa. Exelon Corp., the owner of Three Mile Island, site of the United States' worst commercial nuclear power accident, said Monday, May 29 it will shut down the plant in 2019 without a financial rescue from Pennsylvania. (AP Photo/Matt Rourke, File)

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In this, Friday, May 26, 2017 photo, land is shown where developers are proposing American Dream Miami, a massive 200-acre project on the edge of the Everglades in bustling South Florida that would dwarf any other shopping mecca in North America. Miami-Dade County officials could vote this fall to approve it. (AP Photo/Wilfredo Lee)

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A woman waves for taxi, as she stands in front of a digital billboard promoting the 2017 Wonder Woman movie, in Beirut, Lebanon, Tuesday, May 30, 2017. Lebanon's ministry of economy says it has asked the country's security agency to ban the movie because its lead actress, Gal Gadot, is an Israeli. (AP Photo/Hussein Malla)

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This May 22, 2017 file photo shows the turbine deck at the Three Mile Island nuclear power plant in Middletown, Pa., Exelon Corp., the owner of Three Mile Island, site of the United States' worst commercial nuclear power accident, said Monday, May 29 it will shut down the plant in 2019 without a financial rescue from Pennsylvania. (AP Photo/Matt Rourke, File)

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This May 22, 2017 file photo shows the control room at the Three Mile Island nuclear power plant in Middletown, Pa. Exelon Corp., the owner of Three Mile Island, site of the United States' worst commercial nuclear power accident, said Monday, May 29, it will shut down the plant in 2019 without a financial rescue from Pennsylvania. (AP Photo/Matt Rourke, File)

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FILE - In this undated file photo, a Pennsylvania state police officer and plant security guards stand outside the closed front gate to the Metropolitan Edison nuclear power plant on Three Mile Island near Harrisburg, Pa., after the plant was shut down following a partial meltdown on March 28, 1979. Exelon Corp., the owner of Three Mile Island, said Monday, May 29, 2017 it will shut down the plant in 2019 without a financial rescue from Pennsylvania. (AP Photo/Paul Vathis, File)