National Public Radio Videos

The U.S. Department of Energy is offering $10 million to the first individual or company to develop an energy-efficient LED replacement for the standard 60-watt incandescent bulb. DOE lighting program manager James Brodrick discusses the L Prize, and what makes a better bulb.

Faced with declining fish stocks, many nations are looking for sustainable ways to have their fish and eat it too. But how much fishing is too much? Oceanographer Sylvia Earle discusses this and other topics in her book The World is Blue: How Our Fate and the Ocean's Are One.

At the 2009 International Genetically Engineered Machine competition, undergraduates from all over the world unveiled the living machines they'd created with snippets of DNA, from bacteria that change color when they detect pollutants to ones that secrete non-toxic superglue.

Football players take a lot of hits, but when does hard-headed play go too far? New research suggests that head trauma can do lasting damage. Two brain researchers talk about what happens in the brain when a player gets hit, and how athletes can better protect themselves.

As health care legislation moves through Congress, bioethicist Thomas H. Murray asks if enough attention is being paid to concepts such as justice, fairness and liberty. Murray and health care economist Len Nichols discuss the role of values in the health care debate.

In his new book, Al Gore argues that consumers have "all the tools we need" to solve climate change. But unless the United States takes a leadership role, "it would be impossible to resolve this crisis," he tells NPR.

The H1N1 virus is a major concern for Saudi Arabian authorities, who are gearing up to host millions of Muslims on the annual pilgrimage to Mecca. Health officials are making recommendations and monitoring pilgrims, but otherwise can do little to mitigate the virus' spread.

The state of New York is looking for ways to reduce the time the unemployed spend looking for jobs, and it's turning to a mathematical formula for help. Using an algorithm developed by a Boston technology company, the program directs resumes to the employers most likely to make a hire.

In a country where nearly half the population already lived below the poverty line, the worldwide recession has slashed all of Mexico's largest sources of revenue. Despite recovery elsewhere, the Mexican economy is shrinking at its fastest pace since the Great Depression.

Tens of thousands of demonstrators poured into the streets of Tehran again on Wednesday to protest against the government and last June's presidential election. Some analysts had begun to write off the Iranian opposition as a spent force. But Wednesday, it was clear the opposition has not melted away.