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Portions of the Arctic coast are eroding by more than 26 feet per year, a problem that is likely to worsen as climate change intensifies, according to a new study. [More]

By Alissa de Carbonnel MOSCOW (Reuters) - A tsunami-crippled nuclear power plant might give some countries pause over the risks of exposing reactors to the power of the oceans.

"We are not armed creeps or terrorists," they tell a roomful of Lehigh University students and professors.

Introducing a nationwide intranet that one high-ranking official calls a "Halal Internet." In: censorship and e-banking. Out: sex and profanity. The Iranian government, wary from the internet-driven 2009 demonstrations and the recent Arab revolutions, is planning to wall-off much of the country's online access.

If you look at a map of the world and draw a line through London, a latitude of about 50 degrees North and follow this line across the world, you'll see that it passes through southern Siberia and skims the southern shores of Hudson Bay in Canada. The week before I came out to the Catlin Arctic Survey Ice Base, the temperature in Hudson Bay was lurking between -20

Bacteria and archaea--collectively known as prokaryotes--live pretty much everywhere, dividing happily in places from stomach acid to deep-sea vents. They can thrive in so many different places because their genomes are incredibly flexible: they can alter, lose and duplicate genes almost at will

Study shows many parents eager to have kids tests for adult diseases, despite cautions from experts

Erica Hill talks to Dr. Jennifer Ashton about a New York Times Magazine article about the dangers of sugar and the damage it does to our bodies

Clinical and nutritional psychologist Amanda Baten speaks to Erica Hill about the link between office candy bowls and weight gain and gives some tips on how to make mindful food choices.

Debate growing; Dr.

Straight teens also at risk in areas deemed less sensitive to gays

Neutrino beams might create such enigmas, but dare we risk making anything so unpredictable? In "Too Hard for Science?" I interview scientists about ideas they would love to explore that they don't think could be investigated

It’s the subject no one wants to discuss: sexually transmitted diseases. And even fewer want to have an in-depth conversation with their doctor or nurse about them.

Medical correspondent Dr.

Researchers halt study on HIV prevention pill Truvada in African women after disappointing results show little success