Search results for

Renewable energy has become a $220 billion a year industry. But to significantly slow climate change, the power of wind, solar and other renewable sources must vastly expand. Some say the tech breakthroughs needed are on the horizon, though a top economist sees a tougher road ahead.

The transition from one part of the world to another is filled with anticipation, conflict and drama. These trips can herald life-changing transformations for families seeking out better lives.

Agents at the Bureau of Alcohol, Tobacco, Firearms and Explosives have spent months testing new plastic weapons, and report that the guns can be lethal and hard to detect. The findings come just as a federal law that requires guns to be composed of at least some metal to help people in schools and airports detect them is set to expire.

It's clear this year that this will not be another 2010 or 2012, when upstarts embarrassed the GOP's conventional favorites in primary after primary.

On Tuesday, voters in six states head to the polls for primary elections. NPR's Charles Mahtesian gives NPR's Lynn Neary a preview of what to expect.

In Tuesday's Senate GOP primary, there's little ideological difference between the top candidates, and no one can lay exclusive claim to Tea Party support.

History is being made Tuesday in Sochi, as women's ski jump makes its debut as an Olympic event. While men have competed in ski jumping for nearly a century, women have not been included in Olympic competition. They've been seeking equality in their sport for more than a decade. Tamara Keith was on hand to report on the day's events.

No state has seen as steep a drop in teacher salaries over the past few years. Legislators also halted a salary bump for teachers with master's degrees and cut a cap on class size. "Teachers are really questioning why they want to teach," says the head of a state advocacy group.

Bobsled used to be an all-male sport until 2002. Even now, the women only race two-man, not four-man bobsled. Team USA features 2 summer Olympians as brakemen. Lauren Williams is a gold and silver medalist in the sprint. Lolo Jones did the hurdles in Bejing and London.

The Microsoft founder and philanthropist talks with NPR's David Greene about why he's spent billions on health efforts in developing countries, and about the prospect of beating polio and malaria.