Environment

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A Falcon 9 SpaceX rocket lifts off from launch complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., Wednesday, Feb. 11, 2015. On board is the Deep Space Climate Observatory, which will head to a destination 1 million miles from Earth in direct line with the sun to watch for incoming geomagnetic storms that could trigger power outages on Earth. (AP Photo/John Raoux)

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Damaged vehicles sit on Yeongjong Bridge in Incheon, South Korea, Wednesday, Feb. 11, 2015. Two people were killed Wednesday in a pileup involving about 100 vehicles in foggy weather on the bridge near the Incheon International Airport, South Korean officials said. (AP Photo/Yonhap, Suh Myung-gon)

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Former Florida Gov. Jeb Bush released a flood of emails Tuesday from his time in office, saying he wanted to make a statement on transparency. (Associated Press)

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Conoy Township in south-central Pennsylvania is warning motorists that its residents pack heat in an effort to deter crime. A dozen signs that declare "THIS IS NOT A GUN FREE ZONE," have been erected on just about every major road leading into the town. (CBS 21 News)

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In this photo taken Feb. 9, 2015, President Barack Obama listens in the East Room of the White House in Washington. The president is setting a goal of raising $2 billion from the private sector for investments in clean energy. The White House says it's launching a Clean Energy Investment Initiative as part of the Obama administration's effort to address climate change.The Energy Department will solicit investments from philanthropists and investors concerned about climate change. The aim is to spur development of technologies and energy sources that are low in carbon dioxide pollution, such as solar panels, wind power, fuel cells and advanced batteries. (AP Photo/Pablo Martinez Monsivais)

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An American flag flies over the rubble of the collapsed World Trade Center buildings in New York on Sept. 13, 2001. (Associated Press) **FILE**

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The late Iraqi dictator Saddam Hussein. (Associated Press) ** FILE **

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In this picture taken Tuesday, Nov. 11, 2014, olive oil is filtered in an oil mill in a farm near Evora, in the Portuguese region of the Alentejo. High spring temperatures, a cool summer and abundant rain are taking a big bite out of the olive harvest in some key regions of Italy, Spain, France and Portugal. (AP Photo/Francisco Seco)

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National Edition News cover for February 7, 2015 - White House threat assessment: Climate change as dangerous as terrorism: National Security Adviser Susan Rice speaks at the Brookings Institution to outline President Barack Obama’s foreign policy priorities, Friday, Feb. 6, 2015, in Washington. President Barack Obama says the US must resist the urge to "overreach" abroad, as he outlined a new national security strategy Friday that is meant to serve as a blueprint for his final two years in office. The 29-page document hews closely to Obama's long-held views of America's role in the world and forecasts no major shifts in the military campaign against Islamic State militants or in the conflict between Russia and Ukraine. Beyond those immediate concerns, he also calls for an increased focus on boosting cybersecurity, combating climate change and promoting gay rights around the world. (AP Photo/J. Scott Applewhite)

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FILE - In this June 6, 2013 file photo, crews from Waste Control Specialists load the first of two containers with low-level radioactive waste from Los Alamos National Laboratory in New Mexico, into a reinforced 8-inch-thick concrete container at the 90-acre federal dump where it will remain forever, on Thursday, June 6, 2013, near Andrews, Texas. The Dallas-based company that now disposes of low-level radioactive waste in West Texas is taking a first step to become an interim storage site for high-level waste. Waste Control Specialists is notifying the Nuclear Regulatory of the company's intent to seek a license to build a facility in Andrews County to store spent nuclear fuel rods from decommissioned power plants for as long as 100 years. (AP Photo/Betsy Blaney, File)

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Russia has aligned itself with the anti-fracking movement for fear that aggressive U.S. fracking will cut into Moscow's global gas profits, analysts say. (Associated Press/File)

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Gov. Jerry Brown responds to a question concerning the announcement by U.S. Secretary of the Interior Sally Jewell, left, that the federal government is offering up to $50 million for drought relief in western states during a news conference at the Capitol in Sacramento, Calif., Friday, Feb. 6, 2015. The additional funding includes about $20 million for California's Central Valley Water Project for efforts such as water transfers, drought monitoring for endangered species and diversifying water supplies.(AP Photo/Rich Pedroncelli)

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#1. IDAHO $1.884/GALLON. The Idaho Potato Museum is a must-see stop devoted to the state's iconic crop.

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A person looks at the Piton de la Fournaise volcano in eruption Thursday, Feb. 5, 2015, in the French Indian Ocean island of La Reunion. This is the second eruption in the past year at Piton de la Fournaise after 3-years of quiet. (AP Photo/Fabrice Wislez)

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Ukrainian forces have lost hundreds of square miles more than was agreed under the Minsk Protocol. U.S. and Ukrainian officials say separatists in the east are pushing to establish a land bridge from Russia's mainland to Crimea. (Associated Press)

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2. NEW HAMPSHIRE $2.067/GALLON - Players take to the ice, Friday, Jan. 23, 2015, at White Park in Concord, N.H., for the annual Black Ice hockey tournament. More than 90 teams from around the country will compete in the three-day event . (AP Photo/Jim Cole)