Environment

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Frost covers part of a map at the Sparks Marina, where all of the fish have died over the past month _ an estimated total of 100,000 trout, bass and catfish _ on Friday, Jan. 17, 2014, in Sparks, Nev. Scientists say a sudden cold spurt in December likely caused a violent ``turnover'' of the 77-acre, man-made lake's waters that sucked out almost all the oxygen and killed the fish. (AP Photo/Scott Sonner).

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Waterfowl like this one are still attracted to the Sparks Marina, where all of the fish have died over the past month _ an estimated total of 100,000 trout, bass and catfish _ on Friday, Jan. 17, 2014, in Sparks, Nev. Scientists say a sudden cold spurt in December likely caused a violent "turnover'' of the 77-acre, man-made lake's waters that sucked out almost all the oxygen and killed the fish. (AP Photo/Scott Sonner).

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A woman walks on the beach Friday, Jan. 17, 2014, along a cove at the Sparks Marina in Sparks, Nev., in an area where fishing is prohibited. There currently is no fishing in any part of the 77-acre man-made lake because all of the fish have died over the past month _ an estimated total of 100,000 trout, bass and catfish. Scientists say a sudden cold spurt in December likely caused a violent ``turnover'' of the lake's waters that sucked out almost all the oxygen and killed the fish. (AP Photo/Scott Sonner)

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FILE - In this Nov. 23, 2013 file photo, a hunter is seen on the opening day of the 2013 deer hunting season near Shiocton, Wis. Registering deer at the local bar or store is a Wisconsin tradition. But Gov. Scott Walker’s deer trustee, James Kroll, recommended the state move to telephone and online registration, saying the change would enable the Department of Natural Resources to tally kills more quickly. DNR officials say the move would save money but they’d have to find other ways to collect detailed biological data on deer now gathered in person. (AP Photo/Post-Crescent Media, Wm.Glasheen, File)

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This Oct. 2, 2013 photo Provided by Eolian Renewable Energy shows the Seneca Mountain ridge in Ferdinand, Vt., where its property owner Daniel Ouimette, of Colebrook, N.H., is vowing to build a wind power project over the objections of property owners who rejected a proposal to build 20 industrial turbines. After the recent nonbinding vote, logger and businessman Ouimette, said he will close a snowmobile trail and post no-trespassing signs on his 9,000 acres. (AP Photo/Eolian Renewable Energy, Matthew Robinson)

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Demonstrators hold signs Saturday, Jan. 18, 2014, at the state Capitol in Charleston, W.Va. Local residents voiced their concerns about the quality of their tap water after a Jan. 9 chemical spill into the Elk River tainted the water supply. (AP Photo/John Raby)

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FILE - In this June 25, 2012 file photo, Alaska Lt. Gov. Mead Treadwell speaks to reporters during a news conference in Anchorage, Alaska. Treadwell recently commented on raising the minimum wage. (AP Photo/Mark Thiessen, File)

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Basha Kill Area Association President Paula Medley, shown in the Basha Kill wetlands Wednesday, Jan. 15, 2014, is leading the environmental movement against a proposed $6 billion China-themed cultural, business and amusement park complex in the Catskill Mountains. Medley and other opponents argue that the site can’t be developed on the scale proposed by China City without damaging wetlands vital to the health of the 2,200-acre Bashakill Wildlife Management Area, one of New York’s largest freshwater marshes. (AP Photo/Kathy Willens)

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Basha Kill Area Association President Paula Medley stands in the Basha Kill wetlands, Wednesday, Jan. 15, 2014, in Mamakating, N.Y. Medley is leading the environmental movement against a proposed $6 billion China-themed cultural, business and amusement park complex in the Catskill Mountains. Opponents and environmentalists argue that the site can’t be developed on the scale proposed by China City without damaging wetlands vital to the health of the 2,200-acre Bashakill Wildlife Management Area, one of New York’s largest freshwater marshes. (AP Photo/Kathy Willens)

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Opponents of a proposed $6 billion China-themed cultural, business and amusement park complex in the Catskill Mountains argue that the project could seriously damage the Basha Kill wetlands, shown Wednesday, Jan. 15, 2014, in Mamakating, N.Y. Members of the Basha Kill Area Association say the wetlands are vital to the health of the 2,200-acre Bashakill Wildlife Management Area, one of New York’s largest freshwater marshes. (AP Photo/Kathy Willens)

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Opponents of a proposed $6 billion China-themed cultural, business and amusement park complex in the Catskill Mountains argue that the project could seriously damage the Basha Kill wetlands vital to the health of the 2,200-acre Bashakill Wildlife Management Area, one of New York’s largest freshwater marshes, shown Wednesday, Jan. 15, 2014. (AP Photo/Kathy Willens)