Environment

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Contractors survey a 72-inch sinkhole Wednesday, Jan. 18, 2017, in Orinda, Calif. The city council of Orinda declared a State of Emergency Tuesday night because of a large sinkhole caused by last week's wet weather. Repairs will take at least four weeks, as the San Francisco Bay Area is being hit with a new series of rain storms. (AP Photo/Ben Margot)

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Contractors survey a 72-inch sinkhole Wednesday, Jan. 18, 2017, in Orinda, Calif. The city council of Orinda declared a State of Emergency Tuesday night because of a large sinkhole caused by last week's wet weather. Repairs will take at least four weeks, as the San Francisco Bay Area is being hit with a new series of rain storms. (AP Photo/Ben Margot)

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A 72-inch deep sinkhole is seen Wednesday, Jan. 18, 2017, in Orinda, Calif. The city council of Orinda declared a State of Emergency Tuesday night because of a large sinkhole caused by last week's wet weather, which ruptured two sewer lines. Repairs will take at least four weeks, as the San Francisco Bay Area is being hit with a new series of rain storms. (AP Photo/Ben Margot)

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Tow truck driver Donny Callahan prepares to pull a semi truck out of a ditch in Troutdale, Ore., Wednesday, Jan. 18, 2017. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places. (AP Photo/Don Ryan)

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Trucks and other traffic is diverted off of eastbound Interstate 90 before Snoqualmie Pass, Wednesday, Jan. 18, 2017, in North Bend, Wash. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places. In Washington state, I-90, the main highway connecting western and eastern Washington, was to remain closed over Snoqualmie Pass because of hazardous winter conditions. (AP Photo/Elaine Thompson)

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A truck remains partially covered with ice and parked after being forced to turn around on Snoqualmie Pass when Interstate 90 closed earlier Wednesday, Jan. 18, 2017, in North Bend, Wash. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places. In Washington state, I-90, the main highway connecting western and eastern Washington, was to remain closed over Snoqualmie Pass because of hazardous winter conditions. (AP Photo/Elaine Thompson)

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Local traffic passes trucks parked on the shoulder and waiting for eastbound Interstate 90 to open, Wednesday, Jan. 18, 2017, in North Bend, Wash. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places. In Washington state, I-90, the main highway connecting western and eastern Washington, was to remain closed over Snoqualmie Pass because of hazardous winter conditions. (AP Photo/Elaine Thompson)

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In this image provided by the Hood River County Sheriff, lights from a school reflect off the ice-coated parking lot in Hood River, Ore., Wednesday, Jan. 18, 2017. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places.(Joel Ives/Hood River County Sheriff via AP)

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Icicles hang from a street sign at the University of Idaho, Wednesday, Jan. 18, 2017, in Moscow, Idaho. The region was hit with an ice storm overnight, and is now under a flood watch because of rain and melting snow. (Geoff Crimmins/The Moscow-Pullman Daily News via AP)

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A pedestrian walks into the street to get around an icy sidewalk and a large puddle along Sixth Street on Wednesday, Jan. 18, 2017, in Moscow, Idaho. The region was hit with an ice storm overnight, and is now under a flood watch because of rain and melting snow. (Geoff Crimmins/The Moscow-Pullman Daily News via AP)

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Billy Graham, from Texas, walks carefully on hard packed snow and ice as he makes his way to a restaurant in Troutdale, Ore., Wednesday, Jan. 18, 2017. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places.(AP Photo/Don Ryan)

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A traffic sign alerts drivers on Interstate 84 in Troutdale, Ore., of road closures, Wednesday, Jan. 18, 2017. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places.(AP Photo/Don Ryan)

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Truck driver Brad Cottle, left, from Florida, surveys the situation with his truck stuck in a ditch with tow truck driver Donny Callahan in Troutdale, Ore., Wednesday, Jan. 18, 2017. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places.(AP Photo/Don Ryan)

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Icicles, formed by freezing rain and stiff winds, hang from a road sign along Interstate 84 in Troutdale, Ore., Wednesday, Jan. 18, 2017. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places. (AP Photo/Don Ryan)

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Icicles, formed by freezing rain and stiff winds, hang from a road sign along Interstate 84 as the sun tries to break through dark clouds in Troutdale, Ore., Wednesday, Jan. 18, 2017. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places. (AP Photo/Don Ryan)

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Semi trucks are double parked on the eastbound Interstate 84 off ramp after the freeway was closed in Troutdale, Ore., Wednesday, Jan. 18, 2017. An ice storm shut down parts of major highways and interstates Wednesday in Oregon and Washington state and paralyzed the hardest hit towns along the Columbia River Gorge with up to 2 inches of ice coating the ground in some places. (AP Photo/Don Ryan)

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Environmental Protection Agency Administrator-designate, Oklahoma Attorney General Scott Pruitt testifies on Capitol Hill in Washington, Wednesday, Jan. 18, 2017, at his confirmation hearing before the Senate Environment and Public Works Committee. (AP Photo/J. Scott Applewhite)

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Senate Environment and Public Works Committee Chairman Sen. John Barrasso, R-Wyo., right, confers with Sen. James Inhofe, R-Okla. on Capitol Hill in Washington, Wednesday, Jan. 18, 2017, during the committee's confirmation hearing for Environmental Protection Agency Administrator-designate, Oklahoma Attorney General Scott Pruitt. (AP Photo/J. Scott Applewhite) ** FILE **

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Senate Environment and Public Works Committee member Sen. Bernie Sanders, I-Vt. questions Environmental Protection Agency Administrator-designate, Oklahoma Attorney General Scott Pruitt on Capitol Hill in Washington, Wednesday, Jan. 18, 2017, during the committee's confirmation hearing for Pruitt. (AP Photo/J. Scott Applewhite) ** FILE **

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Environmental Protection Agency Administrator-designate, Oklahoma Attorney General Scott Pruitt is seen on Capitol Hill in Washington, Wednesday, Jan. 18, 2017, at his confirmation hearing before the Senate Environment and Public Works Committee. (AP Photo/J. Scott Applewhite)