Environment

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FILE - In this file photo taken March 24 , 2017, a bison stands among the trees near to felled trees in the Bialowieza Forest, Poland. A European court has ordered Poland to immediately stop cutting trees in Europe’s last pristine ancient forest of Bialowieza, although the order is temporary while European authorities analyse Poland’s position on the matter. (AP Photo/Adam Bohdan, FILE)

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FILE - This March 23, 2012, file photo shows pipes extending into Lake Mead well above the high water mark near Boulder City, Nevada. A years-long fight over a plan to build a 263-mile water pipeline along the Nevada-Utah state line to bring rural groundwater to Las Vegas is about to get a first-ever hearing before a federal judge in Nevada. The pipeline could cost billions of dollars to build, but the Southern Nevada Water Authority says it may become essential if drought keeps shrinking the Lake Mead reservoir on the Colorado River. (AP Photo/Julie Jacobson, File)

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People try their luck fishing in Kramper Lake at the Danish Alps State Recreation Area Thursday, July 13, 2017. The park is two-years-old and located south of Hubbard, Nebraska. (Tim Hynds/Sioux City Journal via AP)

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ADVANCE FOR WEEKEND USE - FILE- In this Feb. 25, 2015, file photo, Boatswain Paul St. Onge uses portable controls to operate a deck crane from the stern of the University of Alaska Fairbanks National Science Foundation research ship Sikuliaq in Seward, Alaska. University scientists and researchers from the College of Fisheries and Ocean Sciences spent the month of June aboard Sikuliaq studying spring productivity and food web dynamics as well as the negative effects that disappearing sea ice cover may have on Arctic habitats. (AP Photo/Dan Joling, File)

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ADVANCE FOR WEEKEND USE- FILE- In this Feb. 25, 2015, file photo,the University of Alaska Fairbanks National Science Foundation research ship Sikuliaq is moored in Seward, Alaska. University scientists and researchers from the College of Fisheries and Ocean Sciences spent the month of June aboard Sikuliaq studying spring productivity and food web dynamics as well as the negative effects that disappearing sea ice cover may have on Arctic habitats. (AP Photo/Dan Joling, File)

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ADVANCE FOR WEEKEND USE- FILE- This Feb. 25, 2015, file photo shows the University of Alaska Fairbanks National Science Foundation research ship Sikuliaq is moored in Seward, Alaska. University scientists and researchers from the College of Fisheries and Ocean Sciences spent the month of June aboard Sikuliaq studying spring productivity and food web dynamics as well as the negative effects that disappearing sea ice cover may have on Arctic habitats. (AP Photo/Dan Joling, File)

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FILE - In this July 16, 2017 file photo, Chief engineer Jukka-Pekka Silander watches from the bow of the the Finnish icebreaker MSV Nordica as it sails into floating sea ice on the Beaufort Sea off the coast of Alaska while traversing the Arctic's Northwest Passage. After 24 days at sea and a journey spanning more than 10,000 kilometers (6,214 miles), the Finnish icebreaker MSV Nordica has set a new record for the earliest transit of the fabled Northwest Passage. The once-forbidding route through the Arctic, linking the Pacific and the Atlantic oceans, has been opening up sooner and for a longer period each summer due to climate change. Sea ice that foiled famous explorers and blocked the passage to all but the hardiest ships has slowly been melting away in one of the most visible effects of man-made global warming. (AP Photo/David Goldman, File)

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FILE - In this July 28, 2017 file photo, the sun dips below the horizon at midnight as trainee Maatiusi Manning takes in the view from aboard the Finnish icebreaker MSV Nordica as it sails toward Greenland after traversing the Northwest Passage through the Canadian Arctic Archipelago. After 24 days at sea and a journey spanning more than 10,000 kilometers (6,214 miles), the Finnish icebreaker MSV Nordica has set a new record for the earliest transit of the fabled Northwest Passage. The once-forbidding route through the Arctic, linking the Pacific and the Atlantic oceans, has been opening up sooner and for a longer period each summer due to climate change. Sea ice that foiled famous explorers and blocked the passage to all but the hardiest ships has slowly been melting away in one of the most visible effects of man-made global warming. (AP Photo/David Goldman, File)

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FILE - In this July 21, 2017 file photo, researchers look out from the Finnish icebreaker MSV Nordica as the sun sets over sea ice floating on the Victoria Strait along the Northwest Passage in the Canadian Arctic Archipelago. After 24 days at sea and a journey spanning more than 10,000 kilometers (6,214 miles), the Finnish icebreaker MSV Nordica has set a new record for the earliest transit of the fabled Northwest Passage. The once-forbidding route through the Arctic, linking the Pacific and the Atlantic oceans, has been opening up sooner and for a longer period each summer due to climate change. Sea ice that foiled famous explorers and blocked the passage to all but the hardiest ships has slowly been melting away in one of the most visible effects of man-made global warming.(AP Photo/David Goldman, File)

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Supporters of arming icebreakers note that the Coast Guard ships are the only American heavy vessels able to traverse the massive glaciers and ice drifts that pockmark the Arctic waterways, but opponents say it sends a dangerous signal to Russia. (Associated Press/File)

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In this July 13, 2017 photo, men remove mud from a shallow canal so tourist boats will be able to move through in Xochimilco, in Mexico City. A late July report by the Universidad Autonoma Metropolitana (UAM), in collaboration with local NGO Controla tu Gobierno, indicates that most of the water being fed into Xochimilco’s canals comes from a water treatment plant known as Cerro de la Estrella, whose output contains “a high level of fecal coliform that indicate sewage.” (AP Photo/Marco Ugarte)

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In this June 27, 2017 photo, a green layer of sludge covers a canal in Xochimilco, in Mexico City. A late July report by the Universidad Autonoma Metropolitana (UAM), in collaboration with local NGO Controla tu Gobierno, indicates that most of the water being fed into Xochimilco’s canals comes from a water treatment plant known as Cerro de la Estrella, whose output contains “a high level of fecal coliform that indicate sewage.” (AP Photo/Marco Ugarte)

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Vicki Harrison adds ice to the fish display at Harbor House Seafood in Hatteras, N.C. Friday July, 28, 2017. Even though the power was out, Harbor House was open, keeping the fish cool using ice and a portable generator. A man-made power outage, not an approaching hurricane, forced 10,000 tourists to flee two North Carolina islands and turned summer vacation into a messy nightmare for many. (Ethan Hyman/The News & Observer via AP)

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Vicki Harrison adds ice to the fish display at Harbor House Seafood in Hatteras, N.C. Friday July, 28, 2017. Even though the power was out, Harbor House was open, keeping the fish cool using ice and a portable generator. A man-made power outage, not an approaching hurricane, forced 10,000 tourists to flee two North Carolina islands and turned summer vacation into a messy nightmare for many. (Ethan Hyman/The News & Observer via AP)

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Vacationers head north on NC 12 on Hatteras Island on Friday, July 28, 2017. Non-residents are being asked to evacuate the island and neighboring Ocracoke Island due to a loss of electrical power. (Steve Earley/The Virginian-Pilot via AP)

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Attorney Skip Miller speaks with reporters after a judge denied his request on behalf of Los Angeles County to keep the Aliso Canyon gas storage field shut down in Los Angeles on Friday, July 28, 2017. A California judge denied a motion to halt the reopening of the massive natural gas storage facility in Los Angeles County that has been offline since a major blowout. Lawyers for the county had asked Superior Court Judge John Wiley to stop Southern California Gas Co. from restarting operations because of earthquake risks. (AP Photo/Brian Melley)

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FILE - This Friday, April 14, 2017, file photo provided by the Arizona Department of Public Safety shows the mangled remains of cars involved in a fatal accident on the Northbound Interstate 17 in Phoenix, Ariz. Arizona transportation officials are moving forward with a first-in-the-nation pilot program that will use thermal camera technology to curb the wrong-way driving problem plaguing the state. The wrong-way detection system will illuminate a sign that notifies the wrong-way driver, and immediately alert the state Department of Public Safety. Arizona Department of Transportation officials will update message boards along the interstate that cautions other drivers of the wrong-way vehicle. (Arizona Department of Public Safety via AP)

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Vanessa Castagnoli, of Tentsile, shows Eric Hanson, the Stingray tree tent, at the Tentsile display during Outdoor Retailer show Thursday, July 27, 2017, in Salt Lake City. Hybrid hammock-tents that allow people to sleep under the stars or chill out while dangling from the trees are growing in popularity among outdoor enthusiasts who are embracing the idea of these portable treehouses. (AP Photo/Rick Bowmer)

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