Environment

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This photo provided by Ocean Shores Police Department, a small boat is washed on the beach at Ocean Shores, Wash., on Monday, April 28, 2014. State authorities are checking the small boat to determine if it may have crossed the Pacific from the March 2011 tsunami off Japan. Ecology Department spokeswoman Linda Kent says it was covered with barnacles and seaweed. It was taken to a state Parks maintenance facility where the marine life is being removed and tested for invasive species. (AP Photo/Ocean Shores Police Department)

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Sandra Hedrick looks at her mobile telephone as she sits in storm debris in Vilonia, Ark., Thursday, May 1, 2014. Forecasters say a tornado that hit Little Rock's suburbs and killed 15 people had winds approaching 200 mph. Sunday's storm was rated as a "high-end" EF4 on a scale of tornado strength. (AP Photo/Danny Johnston)

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AP10thingsToSee - Residents and friends sift through debris after a tornado struck the area, Monday, April 28, 2014, in Vilonia, Ark. A dangerous storm system spawned a chain of deadly tornadoes over three days. (AP Photo/Eric Gay)

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A truck drives along a still-flooded section of Bayliss Court as Gulf Coast residents continue cleaning up from damage caused by torrential rains in Pensacola, Fla., Thursday, May 1, 2014. At the Pensacola airport, 15.55 inches (39.5 centimeters) of rain fell on Tuesday before midnight, setting a record for the rainiest single day in the city. (AP Photo/G.M. Andrews)

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A older model car shows the evidence of receding floodwaters as Gulf Coast residents continue cleaning up from damage caused by torrential rains in Pensacola, Fla., Thursday, May 1, 2014. At the Pensacola airport, 15.55 inches (39.5 centimeters) of rain fell on Tuesday before midnight, setting a record for the rainiest single day in the city. (AP Photo/G.M. Andrews)

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Anthony Snyder rescues a chair and a floor jack from receding floodwaters in the backyard of his home as he and other Gulf Coast residents continue cleaning up from damage caused by torrential rains in Pensacola, Fla., Thursday, May 1, 2014. At the Pensacola airport, 15.55 inches (39.5 centimeters) of rain fell on Tuesday before midnight, setting a record for the rainiest single day in the city. (AP Photo/G.M. Andrews)

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Anthony Snyder contemplates his next move as he continues to salvage belongings from his home as he and other Gulf Coast residents continue cleaning up from damage caused by torrential rains in Pensacola, Fla., Thursday, May 1, 2014. At the Pensacola airport, 15.55 inches (39.5 centimeters) of rain fell on Tuesday before midnight, setting a record for the rainiest single day in the city. (AP Photo/G.M. Andrews)

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Anthony Snyder pours water from a container of his belongings as he salvages items from his home as he and other Gulf Coast residents continue cleaning up from damage caused by torrential rains in Pensacola, Fla., Thursday, May 1, 2014. At the Pensacola airport, 15.55 inches (39.5 centimeters) of rain fell on Tuesday before midnight, setting a record for the rainiest single day in the city. (AP Photo/G.M. Andrews)

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Anthony Snyder rescues a chair and a floor jack from receding floodwaters in the backyard of his home as he and other Gulf Coast residents continue cleaning up from damage caused by torrential rains in Pensacola, Fla., Thursday, May 1, 2014. At the Pensacola airport, 15.55 inches (39.5 centimeters) of rain fell on Tuesday before midnight, setting a record for the rainiest single day in the city. (AP Photo/G.M. Andrews)

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Volunteer, Mark Weaver helps a Winston County, Miss. homeowner (not Pictured) cut up pine trees on Thursday, May 1, 2014. The trees were downed by a tornado on Monday. The National Weather Service has rated the tornado an EF-4. (AP Photo/Jim Lytle)

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Volunteer, Mark Weaver counts the rings on a 47 year-old pine tree on Thursday, May 1, 2014 in Winston County, Miss. The tree were downed by a tornado on Monday. The National Weather Service has rated the tornado an EF-4. (AP Photo/Jim Lytle)

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Area residents view autos sitting on top of each other in a washed out section of Dog Track Road in the Millview community as the Gulf Coast continues to clean up from damage caused by torrential rains in Pensacola, Fla., Thursday, May 1, 2014. The National Weather Service, estimated 15-20 inches of rain has fallen in the Pensacola area in the past 2 days. (AP Photo/G.M. Andrews)

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Autos sit on top of each other in a washed out section of Dog Track Road in the Millview community as Gulf Coast residents continue cleaning up from damage caused by torrential rains in Pensacola, Fla., Thursday, May 1, 2014. The National Weather Service, estimated 15-20 inches of rain has fallen in the Pensacola area in the past 2 days. (AP Photo/G.M. Andrews)

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A home remains in water despite receding flood waters, Thursday, May 1, 2014, in Gulf Breeze, Fla. The National Weather Service, estimated 15-20 inches of rain has fallen in the Pensacola area in the past 2 days. (AP Photo/John Raoux)

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Chelsea Owens navigates a kayak down a flooded street near her home in the Whisper Oaks subdivision, Thursday, May 1, 2014, in Gulf Breeze, Fla. The National Weather Service, estimated 15-20 inches of rain has fallen in the Pensacola area in the past 2 days. (AP Photo/John Raoux)