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FILE - This May 31, 2018 file photo shows the reduced water level of Lake Mead behind Hoover Dam in Arizona. Several states that rely on a major Western river are pushing for federal legislation to implement a plan to keep key reservoirs from shrinking amid a prolonged drought. The Colorado River serves 40 million people in Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. Representatives from those states are meeting Tuesday, March 19, 2019, to sign a letter to Congress asking for support for so-called drought contingency plans. (AP Photo/Ross D. Franklin, File)
The Associated Press
US official declares drought plan done for Colorado River
FILE - This May 31, 2018 file photo shows the reduced water level of Lake Mead behind Hoover Dam in Arizona. Several states that rely on a major Western river are pushing for federal legislation to implement a plan to keep key reservoirs from shrinking amid a prolonged drought. The Colorado River serves 40 million people in Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. Representatives from those states are meeting Tuesday, March 19, 2019, to sign a letter to Congress asking for support for so-called drought contingency plans. (AP Photo/Ross D. Franklin, File)
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  • FILE - This May 31, 2018 file photo shows the reduced water level of Lake Mead behind Hoover Dam in Arizona. Several states that rely on a major Western river are pushing for federal legislation to implement a plan to keep key reservoirs from shrinking amid a prolonged drought. The Colorado River serves 40 million people in Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. Representatives from those states are meeting Tuesday, March 19, 2019, to sign a letter to Congress asking for support for so-called drought contingency plans. (AP Photo/Ross D. Franklin, File)
  • This 1999 flyer released by the Ozark (Ala.) Police Department, shows J.B. Beasley, left, Tracie Hawlett, who were both murdered in July 1999. Alabama authorities say a DNA match found through a genealogy website has led to an arrest in the killings of the two teenage girls nearly 20 years ago. Al.com reports Coley McCraney, of Dothan, was arrested Saturday, March 16, 2019, on rape and capital murder charges in the 1999 deaths of Hawlett and Beasley. (Ozark Police Department via AP)
  • A submersible after British scientist and her American pilot had to make an emergency ascent from 250 meters beneath the surface of the Indian ocean off the Seychelles after smoke filled their two-person submersible, Tuesday March 19, 2019. The pair, from the UK-led Nekton Mission investigating climate change in the region, are both safe onboard the mother ship where an electrical fire aboard the sub is being investigated as the possible cause. (AP Photo/David Keyton)
  • FILE - This artist's rendering made available by NASA in July 2016 shows the mapping of the near-Earth asteroid Bennu by the OSIRIS-REx spacecraft. Scientists had thought the asteroid Bennu had wide, open areas to scoop up dirt and gravel. But on Tuesday, March 19, 2019, NASA announced the probe hasn’t found any big spots for sampling. (NASA/Goddard/University of Arizona via AP)
  • FILE - In this Oct. 9, 2018 file photo, a researcher installs a fine glass pipette into a microscope in preparation for injecting embryos with Cas9 protein and PCSK9 sgRNA at a lab in Shenzhen in southern China's Guandong province. On Tuesday, March 19, 2019, an expert committee convened by the World Health Organization is calling for the U.N. health agency to create a global registry of scientists working on gene editing. (AP Photo/Mark Schiefelbein, File)
  • FILE – In this July 12, 2011, file photo, two rowers paddle along the Cuyahoga River in Cleveland. Federal environmental regulators say fish living in the northeastern Ohio river that became synonymous with pollution when it caught fire in 1969 are now safe to eat. The easing of fish consumption restrictions on the Cuyahoga River was lauded by Republican Gov. Mike DeWine as progress achieved by investing in water quality. (AP Photo/Tony Dejak, File)
  • Ozark (Ala.) Police Chief Marlos Walker comments during a press conference Monday, March 18, 2019 announcing the arrest of Coley McCraney of nearby Dothan for the 1999 slayings of Dothan teens J.B. Beasley and Tracie Hawlett. McCraney was arrested Friday and is held in the Dale County Jail with no bond. (Jay Hare/Dothan Eagle via AP)
  • CORRECTS MONTH TO MARCH NOT MAY - The city of Valley is inundated with floodwaters Sunday, March 17, 2019, in Valley, Neb. Hundreds of people were evacuated from their homes in Nebraska and Iowa as levees succumbed to the rush of water. (Jeff Bundy/Omaha World-Herald via AP)
  • Mozambique's President Filipe Nyusi says that as many as 1,000 could have by killed by Cyclone Idai.;
  • The Missouri River floods across and closes K-7 highway near White Cloud, Kan., Monday, March 18, 2019. (AP Photo/Orlin Wagner)
  • A helicopter and Stanislaus Consolidated Fire Protection District are on the scene on the bridge over the Stanislaus River in Knights Ferry, Calif. where a child fell into the water on Sunday March 17, 2019. Two people were rescued from a fast-flowing wash in Los Angeles early Monday and searchers combed a river in the Sierra Nevada foothills for a little girl swept away during the weekend, putting a focus on dangers resulting from California’s exceptionally wet winter. (Deke Farrow/The Modesto Bee via AP)
  • CAPTION CORRECTS TYPE OF SURGERY - In this photo taken onSunday, March 17, 2019, veterinarians and volunteers of Sumatra Orangutan Conservation Programme (SOCP) tend to a female orangutan they named 'Hope' during a surgery for infections in some parts of the body and to fix broken bones, at SOCP facility in Sibolangit, North Sumatra, Indonesia. A veterinarian says the endangered orangutan that had a young baby has gone blind after being shot at least 74 times, including six in the eyes, with air gun. The baby orangutan died from malnutrition last Friday as rescuers rushed the two to the facility. (AP Photo/Binsar Bakkara)
  • FILE - In this Feb. 22, 2019, file photo, this image released by the Japan Aerospace Exploration Agency (JAXA) shows the shadow, center above, of the Hayabusa2 spacecraft after its successful touchdown on the asteroid Ryugu. Japan's space agency says its Hayabusa2 spacecraft will follow up last month's touchdown on a distant asteroid with another risky mission — to drop an explosive to make a crater and collect underground samples to get possible clues to the origin of the solar system. (JAXA via AP, File)
  • Green Bay firefighters assist residents in evacuating their homes due to the East river flooding on Friday, March 15, 2019 in Green Bay, Wis. Heavy rain falling atop deeply frozen ground has prompted evacuations along swollen rivers in Wisconsin, Nebraska and other Midwestern states, while powerful wind and snow has impacted hundreds of miles of interstates in North Dakota. (Adam Wesley/The Post-Crescent via AP)
  • An island of solar panels floats in a pond at the Los Bronces mining plant, about 65 kilometers (approximately 40 miles) from Santiago, Chile, Thursday, March 14, 2019. The array floats in the middle of a pond that is used to contain the refuse from mining, known as tailings, and it is expected that the island's shadow will lower the water temperature and reduce evaporation by 80 percent. (AP Photo/Esteban Felix)
  • Demonstrators hold a placard reading "Dinosaurs also thought had time" during an action for the climate in Marseille, southern France, Saturday, March 16, 2019. Saturday's march many French cities called "March of the Century" come the day after students in more than 100 countries demanded tougher climate action. (AP Photo/Claude Paris)
  • Kayleena Duvall, 6, of Baltimore, Md., stands for a portrait before a chalkboard of her age in 2030, the point where the globe would be stuck on a path toward what scientists call planet-changing dangerous warming, Friday, March 15, 2019, during a climate change rally of students in Washington. From the South Pacific to the edge of the Arctic Circle, students are skipping classes to protest what they see as the failures of their governments to take tough action against global warming. The 'school strikes' on Friday were inspired by 16-year-old Swedish activist Greta Thunberg and are taking place in over 100 countries. (AP Photo/Jacquelyn Martin)
  • Youngsters take part in a student climate protest in Parliament Square, London, Friday, March 15, 2019. Students in more than 80 countries and territories worldwide plan to skip class Friday in protest over their governments' failure to act against global warming. The coordinated 'school strike' was inspired by 16-year-old activist Greta Thunberg, who began holding solitary demonstrations outside the Swedish parliament last year. (AP Photo/Matt Dunham)
  • Jim Freeman tries to saw through thick ice slabs on his property in Fremont, Neb., Thursday, March 14, 2019, after the ice-covered Platte River flooded it's banks. Evacuations forced by flooding have occurred in several eastern Nebraska communities. (AP Photo/Nati Harnik)
  • Former U.S. Vice President Al Gore, founder of the Climate Reality Project, speaks to the Associated Press in an interview, Friday, March 15, 2019, in Atlanta. Gore says the United States is nearing a political tipping point that will force elected officials to adopt more aggressive policies to combat climate change. (AP Photo/Mike Stewart)
  • RETRANSMISSION TO CORRECT SURNAME - Tom Wilke, center, his son Chad, right, and Nick Kenny, load a boat out of the swollen waters of the North Fork of the Elkhorn River after checking on the Witke's flooded property, in Norfolk, Neb., Friday, March 15, 2019. Heavy rain falling atop deeply frozen ground has prompted evacuations along swollen rivers in Wisconsin, Nebraska and other Midwestern states. Thousands of people have been urged to evacuate along eastern Nebraska rivers as a massive late-winter storm has pushed streams and rivers out of their banks throughout the Midwest. (AP Photo/Nati Harnik)
  • FILE - In a 2003 file photo, a desert bighorn sheep is released in the Granite Mountains of northern Nevada near the Oregon line. A new survey has found a sharp decline in desert bighorn sheep in Southern California, and biologists suspect the cause is a disease contracted from domestic animals. The California Department of Fish and Wildlife says a survey in early March 2019 counted 60 bighorns in the Mount San Gorgonio region east of Los Angeles. That's down two-thirds from a survey conducted in 2016. (Kim Toulouse/Nevada Department of Wildlife/The Reno Gazette-Journal via AP, File)
  • In this Tuesday, March 12, 2019 photo students from the Theodore T. Alexander Science Center School play with interactive display at the California Science Center in Los Angeles. A new exhibit at a Los Angeles museum examines the relationship between dogs and humans and explores why the two species seem to think so much alike and get along so well. "Dogs! A Science Tail” opens Saturday, March 16, 2019, at the California Science Center. (AP Photo/Richard Vogel)
  • City of Scottsbluff, Neb. plows work to clear snow from Broadway on Wednesday, March 13, 2019. Evacuations forced by flooding have occurred in several eastern Nebraska communities, as western Nebraska residents struggled with blizzardlike conditions. (Spike Jordan/The Star-Herald via AP)
  • U.S. astronauts Christina Hammock Koch, a members of the main crew to the International Space Station (ISS), interacts with her relatives from a bus prior to the launch of the Soyuz FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, March 13, 2019. The new Soyuz mission to the International Space Station (ISS) is scheduled on Thursday, March. 14. (AP Photo/Dmitri Lovetsky)
  • Owensboro Municipal Utilities' Jim Goodwin clears a downed power line from under a fallen tree in the 1800 hundred block of Freeman Avenue after severe storms moved through the area, Thursday, March 14, 2019 in Owensboro, Ky. (Alan Warren/The Messenger-Inquirer via AP)
  • The wall of this home was blown out when a devastating tornado touched down off Hamburg Road in McCracken County, Ky., on Thursday, March 14, 2019. (Ellen O'Nan/The Paducah Sun via AP)
  • In this photo released Wednesday, March 13, 2019, by the National Park Service, is a damaged tent cabin after the recent heavy snowpack in Yosemite National Park, Calif. The park announced that there will be late seasonal openings to facilities due to the exceptionally heavy snowpack and the subsequent extensive damage to many park facilities. (NPS Photo via AP)
  • Cody Stump walks through a flooded street Wednesday, March 13, 2019, in Hooper, Neb. A window-rattling late winter storm brought blizzards, floods and a tornado across more than 25 states Wednesday, stretching from the northern Rocky Mountains to Texas and beyond. (Ryan Soderlin/Omaha World-Herald via AP)
  • FILE - This Jan. 8, 2003 file photo shows a reconstructed Neanderthal skeleton, right, and a modern human version of a skeleton, left, on display at the Museum of Natural History in New York. Languages evolve as societies develop and change, but the sounds we utter are also shaped, literally, by the placement of our jaw – and that is influenced by how we chew our food, researchers say in a report released Thursday, March 14, 2019, in the journal Science. (AP Photo/Frank Franklin II, File)
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