Environment

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Water from Lake Tahoe flows into the Truckee River through the dam at Tahoe City, Calif., in this photo taken on Feb. 23, 2017. The drought-busting snow and rain in the mountains around Tahoe have pushed the lake's level to its highest mark in more than a decade. (Jason Bean /The Reno Gazette-Journal via AP)

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The pier in the background of this photograph taken at Lake Tahoe in Tahoe City, Calif., on Feb. 23, 2017 was standing in only a few inches of water in the summer of 2015. The drought-busting snow and rain in the mountains around Tahoe this winter have pushed the lake's level to its highest mark in more than a decade. (Jason Bean/The Reno Gazette-Journal via AP)

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The dry lake bed of Lake Tahoe is pictured in this photo taken on June 18, 2015 near the dam that normally releases water into the Truckee River at Tahoe City, Calif. The drought-busting snow and rain in the mountains around Tahoe this winter have pushed the lake's level to its highest mark in more than a decade. The federal water master started releasing water into the river last week. (AP Photo/Scott Sonner).

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President Donald Trump speaks as he signs the Waters of the United States (WOTUS) executive order, Tuesday, Feb. 28, 2017, in the Roosevelt Room in the White House in Washington, which directs the Environmental Protection Agency to withdraw the Waters of the United States (WOTUS) rule, which expands the number of waterways that are federally protected under the Clean Water Act. (AP Photo/Andrew Harnik)

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President Donald Trump shakes hands with Environmental Protection Agency (EPA) Administrator Scott Pruitt, center, before signing the Waters of the United States (WOTUS) executive order, Tuesday, Feb. 28, 2017, in the Roosevelt Room in the White House in Washington, which directs the Environmental Protection Agency to withdraw the Waters of the United States (WOTUS) rule, which expands the number of waterways that are federally protected under the Clean Water Act. (AP Photo/Andrew Harnik)

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President Donald Trump shakes hands after signing the Waters of the United States (WOTUS) executive order, Tuesday, Feb. 28, 2017, in the Roosevelt Room in the White House in Washington, which directs the Environmental Protection Agency to withdraw the Waters of the United States (WOTUS) rule, which expands the number of waterways that are federally protected under the Clean Water Act. (AP Photo/Andrew Harnik) **FILE**

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This October 2016 photo supplied by Simplot Plant Sciences shows Innate Gen. 2 potatoes surviving in a field infected with late blight disease at Michigan State University in East Lansing, Mich. Federal officials said three types of potatoes genetically engineered to resist the pathogen that caused the Irish potato famine are safe for the environment and safe to eat. (Nico Champouret/Simplot Plant Sciences via AP)

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Construction crews dredge the river bed near Oroville Dam's crippled spillway Tuesday, Feb. 28, 2017, in Oroville, Calif. California water authorities stopped the flow of water down the spillway, Monday, allowing workers to begin clearing out massive debris that's blocking a hydroelectric plant from operating. (AP Photo/Rich Pedroncelli)

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Construction crews dredge the river bed near Oroville Dam's crippled spillway Tuesday, Feb. 28, 2017, in Oroville, Calif. California water authorities stopped the flow of water down the spillway, Monday, allowing workers to begin clearing out massive debris that's blocking a hydroelectric plant from operating. (AP Photo/Rich Pedroncelli)

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Construction crews clear rocks away from Oroville Dam's crippled spillway Tuesday, Feb. 28, 2017, in Oroville, Calif. California water authorities stopped the flow of water down the spillway, Monday, allowing workers to begin clearing out massive debris that's blocking a hydroelectric plant from operating. (AP Photo/Rich Pedroncelli)

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Dancers perform in the Carnival parade in Les Cayes, Haiti, Monday, Feb. 27, 2017. Haiti's government spent some $3 million on this year’s Carnival celebrations, hoping to lure tourists and Haitians living abroad. (AP Photo/Dieu Nalio Chery)

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Fidelio Desbradel and his wife Leonor Desbradel, of the Dominican Republic, take a selfie in front of a Tulip Magnolia tree in Washington, Tuesday, Feb. 28, 2017. Crocuses, cherry trees, magnolia trees are blooming several weeks early because of an unusually warm February. Some climate experts say it looks like, because of an assist from global warming, spring has sprung what may be record early this year in about half the nation. (AP Photo/Cliff Owen)

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Crocuses are blooming in New York's Central Park, Tuesday, Feb. 28, 2017. Crocuses, cherry trees, magnolia trees are blooming several weeks early because of an unusually warm February. Some climate experts say it looks like, because of an assist from global warming, spring has sprung what may be record early this year in about half the nation. (AP Photo/Mark Lennihan)

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A Canada Goose paddles past a painted turtle out of hibernation, Tuesday, Feb. 28, 2017, in New York's Central Park. Crocuses, cherry trees, magnolia trees are blooming several weeks early because of an unusually warm February. Some climate experts say it looks like, because of an assist from global warming, spring has sprung what may be record early this year in about half the nation. (AP Photo/Mark Lennihan)

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Visitors to Central Park's Conservatory Garden pass a flowering rhododendron, Tuesday, Feb. 28, 2017, in New York. Crocuses, cherry trees, magnolia trees are blooming several weeks early because of an unusually warm February. Some climate experts say it looks like, because of an assist from global warming, spring has sprung what may be record early this year in about half the nation. (AP Photo/Mark Lennihan)

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Tulip Magnolia trees bloom in Washington, Tuesday, Feb. 28, 2017. Crocuses, cherry trees, magnolia trees are blooming several weeks early because of an unusually warm February. Some climate experts say it looks like, because of an assist from global warming, spring has sprung what may be record early this year in about half the nation. (AP Photo/Cliff Owen)

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Daffodils bloom in New York's Central Park, Tuesday, Feb. 28, 2017. Crocuses, cherry trees, magnolia trees are blooming several weeks early because of an unusually warm February. Some climate experts say it looks like, because of an assist from global warming, spring has sprung what may be record early this year in about half the nation. (AP Photo/Mark Lennihan)

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Volunteer John Walsh from northeast Philadelphia rakes debris at Mount Carmel Cemetery Tuesday, Feb. 28, 2017, in Philadelphia. Scores of volunteers are helping in an organized effort to clean up and restore the Jewish cemetery where vandals damaged hundreds of headstones.(AP Photo/Jacqueline Larma)

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Flowers rest on a damaged headstone at Mount Carmel Cemetery Feb. 28, 2017 in Philadelphia. Scores of volunteers are expected to help in an organized effort to clean up and restore the Jewish cemetery where vandals damaged hundreds of headstones. (AP Photo/Jacqueline Larma)

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Damaged headstones are seen through a hole in a fence surrounding Mount Carmel Cemetery Tuesday, Feb. 28, 2017, in Philadelphia. Scores of volunteers are expected to help in an organized effort to clean up and restore the Jewish cemetery where vandals damaged hundreds of headstones. (AP Photo/Jacqueline Larma)