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The Arctic is heating up twice as fast as the rest of the Earth, and sea ice is rapidly disappearing during the summer months. Some studies now suggest the Arctic Ocean could be free of ice in the summertime by the year 2030, with major repercussions in the region and beyond.

When Walter Reed was slated for closure back in 1995, the goals were to improve care for the wounded, and to save money. The final patients left this past week. So was shutting the base a good deal for taxpayers? The cost of closing it has tripled.

What exactly does it mean to be living in an economy with 2 percent growth instead of 3 percent growth? We can look forward to an even higher unemployment rate, smaller incomes and increasing government budget issues.

No matter how much (or little) pre-planning occurs, the success of improvised music hinges on the chemistry of the players. In Extra Extra, Bergonzi's crew creates in the moment, without distractions.

A summer program at Johns Hopkins University puts high schoolers' ingenuity to the test — building bridges out of nothing but spaghetti and glue.

The U.S. arsenal of intercontinental ballistic missiles is decades old and will have to be replaced. Now some are questioning whether the weapons are worth the cost.

Joining efforts to help victims of the war in Syria, Syrian-American doctors are bringing desperately needed supplies and knowledge to facilities in Turkey overwhelmed by the wounded. Some are treating Syrians there, while others are crossing the border to use their skills on the battlefield.

Canada ships about 2.5 million barrels of oil to the U.S. every day, much of which comes through a pipeline system that dead-ends in Cushing, Okla., a town where incoming oil supplies have backed up enough to keep oil prices in the middle of the country lower than on the coasts.

International mining companies hope to establish operations soon in the Central African Republic, one of the world's poorest nations. Meanwhile, farmers are flocking to mining villages — where the poor conditions remind aid workers of refugee camps. One village had four fires in two months.

International mining companies hope to establish operations soon in the Central African Republic, one of the world's poorest nations. Meanwhile, farmers are flocking to mining villages — where the poor conditions remind aid workers of refugee camps. One village had four fires in two months.