Environment

2aead26f3db8b203490f6a7067008d20.jpg

Virginia Tech's Cadarian Raines (4) drives for a shot next to Wake Forest's Arnaud Adala Moto during the second half of an NCAA college basketball game Wednesday, Jan. 22, 2014, in Blacksburg, Va. Wake Forest won 83-77. (AP Photo/The Roanoke Times, Matt Gentry)

291093dd3da8b203490f6a706700b6f0.jpg

Virginia Tech's Joey van Zegeren, right, dives for a loose ball next to Wake Forest's Tyler Cavanaugh during the second half of an NCAA college basketball game in Blacksburg, Va., Wednesday, Jan. 22 2014. Wake Forest won 83-77. (AP Photo/The Roanoke Times, Matt Gentry)

0fc361e13d78b103490f6a70670098fd.jpg

Republican Reps. Devin Nunes, left,and Rep. Kevin McCarthy, center, and House Speaker John Boehner, right, prepare for a news conference about the drought situation in the Central Valley, Wednesday, Jan. 22, 2014, near Bakersfield, Calif. Boehner visited a dusty California field, joining Central Valley Republicans to announce an emergency drought-relief bill to help farmers through what is certain to be a devastating year. If passed, the bill that's already stirring controversy would temporarily halt restoration of the San Joaquin River designed to bring back the historic salmon flow, among other measures. Farmers want that water diverted to their crops. (AP photo/The Bakersfield Californian, Casey Christie) MAGS OUT ONLINES OUT TV OUT NO SALES

ce5ea8d53d73b103490f6a706700a3fc.jpg

House Speaker John Boehner talks about the drought in the Central Valley, Wednesday, Jan. 22, 2014, during a news conference on farmer Larry Starrh's land, northwest of Bakersfield, Calif. State Sen. Jean Fuller is behind him. Boehner visited a dusty California field, joining Central Valley Republicans to announce an emergency drought-relief bill to help farmers through what is certain to be a devastating year. If passed, the bill that's already stirring controversy would temporarily halt restoration of the San Joaquin River designed to bring back the historic salmon flow, among other measures. Farmers want that water diverted to their crops. (AP photo/The Bakersfield Californian, Casey Christie) MAGS OUT ONLINES OUT TV OUT NO SALES

cbfe6f141d42ab03490f6a706700bf5b.jpg

Bay Area Rapid Transit police chief Kenton Rainey, at podium, answers questions about the shooting of a BART officer who was killed by a fellow officer during a news conference Wednesday, Jan. 22, 2014, in Oakland, Calif. Authorities say a San Francisco Bay Area public transit officer who was shot and killed Tuesday by a fellow officer while searching an apartment was looking for a laptop and other stolen items. Rainey declined to disclose any further details of how the shooting of Sgt. Tom Smith occurred. A robbery suspect was in custody. (AP Photo/Eric Risberg)

ffb6ca2c3d2bb003490f6a706700a5ba.jpg

This Jan. 16, 2014, booking photo released by Bay Area Rapid Transit shows John Henry Lee. Authorities said a San Francisco Bay Area public transit officer who was shot and killed Tuesday, Jan. 21 by a fellow officer while searching the apartment of Lee, a robbery suspect. The officers were looking for a laptop and other stolen items. (AP Photo/Bay Area Rapid Transit)

b53512b21d15aa03490f6a706700bc4a.jpg

Rescue personnel and area fire fighters wait for the flames to die down as a fire at a biodiesel facility near New Albany, Miss., burns Wednesday, Jan. 22, 2014. The fire was so hot that firefighters could not get close enough to fight it, the Mississippi Highway Patrol said. The plant is located near New Albany on Mississippi Highway 15, which has been closed to traffic. Firefighters are letting it burn out. (AP Photo/The New Albany Gazette, Angie Barmer) MANDATORY CREDIT

037aaec01d15aa03490f6a7067001ebb.jpg

A fire at a biodiesel facility near New Albany, Miss., burns Wednesday, Jan. 22, 2014. The fire was so hot that firefighters could not get close enough to fight it, the Mississippi Highway Patrol said. The plant is located near New Albany on Mississippi Highway 15, which has been closed to traffic. Firefighters are letting it burn out. (AP Photo/The New Albany Gazette, Angie Barmer) MANDATORY CREDIT

d8c5b93e1c7aa703490f6a70670039cc.jpg

A fire at a biodiesel facility near New Albany, Miss., burns early Wednesday, Jan. 22, 2014. The fire was so hot that firefighters could not get close enough to fight it, the Mississippi Highway Patrol said. The plant is located near New Albany on Mississippi Highway 15, which has been closed to traffic. Firefighters are letting it burn out. (AP Photo/The New Albany Gazette, Angie Barmer) MANDATORY CREDIT

06ab81141c7ba703490f6a70670081d1.jpg

A fire at a biodiesel facility near New Albany, Miss., burns early Wednesday, Jan. 22, 2014. The fire was so hot that firefighters could not get close enough to fight it, the Mississippi Highway Patrol said. The plant is located near New Albany on Mississippi Highway 15, which has been closed to traffic. Firefighters are letting it burn out. (AP Photo/The New Albany Gazette, Angie Barmer) MANDATORY CREDIT