During a campaign speech at Veterans Memorial Park in Manchester, N.H., Oct. 18, President Obama once again embraced the term "Obamacare" while discussing the Affordable Care Act.
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A boat skims through the melting ice in the Ilulissat fiord, on the western coast of Greenland, in 2008. The glacier is the most active in the Northern Hemisphere, producing 10 percent of Greenland's icebergs, or some 20 million tons of ice per day. But experts say the glacier is in bad shape because of climate change.
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A general view of the Aletsch Glacier on April 21, 2007, near Brig, Switzerland, the largest glacier in the Alps. Unseasonably warm weather with temperatures up to 77 degrees Fahrenheit across Switzerland let snow melt, even at Alpine altitudes.
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This Sept. 16 image released by NASA shows the amount of summer sea ice in the Arctic, at center in white, and the 1979 to 2000 average extent for the day shown, with the yellow line. Scientists say sea ice in the Arctic shrank to an all-time low of 1.32 million square miles on Sept. 16, smashing old records for the critical climate indicator.
Veterans applaud at an Oct. 8 campaign event in Swanton, Ohio, for Republican vice presidential candidate Paul Ryan. Health care and unemployment are among veterans' chief concerns this election season, and both the Obama and the Romney campaigns have offered solutions.
People eat a free community meal at The Center in Lima, Ohio, earlier this year. Although more than 46 million Americans are poor, the issue has gotten little attention in the presidential race.
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Smoke rises from the stacks of the La Cygne Generating Station coal-fired power plant in La Cygne, Kan. President Obama's regulation of the coal industry has come under fire from his Republican challenger, Mitt Romney.
Afghan children run to school on Sept. 24. Whoever takes over as the next U.S. president will have to determine how many troops will remain after the December 2014 deadline to help with long-term security.
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President Obama and Mitt Romney are both calling on the U.S. to become less dependent on foreign oil, though their plans differ. Here, workers with Bramwell Petroleum set up a derrick for a new oil well near Spivey, Kan., in March.