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A protest in the Russian Arctic has dramatized growing problems with oil drilling there. Every country has a stake in the enormously lucrative search for oil and gas in the Arctic, says professor Lawton Brigham. But pollution from reckless attempts at development are evident on an island near the Polar circle.

It's rivalry week in college football. And this weekend, there's some extra spice as games from Alabama to Florida to Michigan could have an impact on which two teams end up playing for the national championship.

Previous estimates of the climate-warming gas were based on the rough number of methane-emitting sources on the ground — such as factories, refineries, stoves, swamps, landfills and cattle herds. But by directly measuring levels of methane in the air instead, a new study puts the total much higher.

After a major investigation into America's nuclear forces, Secretary of Defense Chuck Hagel says that he will be investing billions of dollars into the system, and changing to the way it's managed.

The government has set up a female lumberjacks program, part of a wider effort to fuel growth after long-term stagnation. But critics say it does little to tackle fundamental problems.

Top-division college football announced the teams in its first-ever playoff: Alabama, Oregon, Ohio State and Florida State. But the next division down has had a playoff since the 1970s, with 24 teams.

Light beer doesn't have to mean less flavor. A growing trend is offering another option. Session beers emphasize craft-beer taste with alcohol as low as or lower than big-brand light beers.

Officials said there were "credible reports" that one team intentionally lost a game to prevent another team from advancing. To settle the matter, those teams faced each other in a playoff.

Aravena, 48, is known for his socially conscious, sustainable design, often executed at staggering speed and on minuscule budgets.

Seven GOP candidates will be on stage for Thursday night's debate, the fewest of the campaign. With just a couple of weeks until the Iowa caucuses, attacks among candidates are getting sharper.