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Campylobacter bacteria in cattle manure may survive composting

Contrary to popular belief, some disease causing bacteria may actually survive the composting process. Researchers report that campylobacter bacteria in cattle manure can survive composting and persist for long periods in the final product.

LED streetlights best buy for cities, researchers report

Researchers have conducted the first cradle-to-grave assessment of light-emitting diode streetlights and determined that the increasingly popular lamps strike the best balance between brightness, affordability, and energy and environmental conservation when their life span -- from production to disposal -- is considered. LEDs consist of clusters of tiny, high-intensity bulbs and are extolled for their power efficiency and clear luminosity.

How ocean bacterium turns carbon into fuel

Researchers have uncovered details about how cyanobacteria, one of the most abundant organisms on Earth, digest carbon. These bacteria build miniature factories inside themselves that turn carbon into fuel. A new study shows the bacteria organize these factories spatially, lining them up in a neat row, revealing a structural sophistication not often seen in single-celled organisms.

Marshes Dying for Lack of Fresh Water at Maurepas Swamp, Louisiana, US

Without a diversion from the Mississippi River or the introduction of other sources of fresh water in the near future, the Maurepas Swamp in southeast Louisiana will continue on a clear path toward becoming marsh and open water, a new study confirms.

Waste could generate up to 7 percent of electricity in Spain

Researchers have calculated the energy and economic potential of urban solid waste, sludge from water treatment plants and livestock slurry for generating electricity in Spain. These residues are alternative sources of renewable energy, which are more environmentally friendly and, in the case of solid urban waste, more cost effective.

TV producer pleads guilty in Letterman blackmail case

A CBS news producer accused of trying to blackmail comedian David Letterman pleaded guilty to second-degree grand larceny at a hearing Tuesday.

U.S.: Terror charges for 'Jihad Jane'

A Pennsylvania woman has been indicted for conspiracy to provide material support to terrorists and kill a person in a foreign country, the Justice Department announced Tuesday.

Police: Ohio State shooter killed himself

A gunman apparently angry over a poor evaluation entered an Ohio State University maintenance building today, killing a manager and then himself, police said.

Same-sex couples marry in D.C.

A lesbian couple smiled through tears today as they became the first same-sex couple to marry in the District of Columbia.

Missing exec's body found in river

Investigators began their fifth day of scouring New Orleans, Louisiana, for a missing energy executive on Tuesday, and police say he could have fallen into the Mississippi River.

Minorities' higher Alzheimer's risk

Francisca Terrazas and other Latinas are about 1.5 times more likely than Anglos to develop Alzheimer's and other forms of dementia, a new report says. Read how her family copes.

Haitian couple await baby's return

In the chaos following January's earthquake, a baby was separated from her parents and brought to Miami. Now a couple await a DNA test to prove the baby is theirs.

Eat, pray sleep: Survey uncovers our habits

Your racial and ethnic background can shape many aspects of your life: the type of food you eat, where you live, and your political views.

Bipolar being diagnosed younger

This week, Dr. Charles Raison offers part two of his answer to the viewer question: Can a 9- or 10-year-old be bipolar?

Women drinkers less likely to gain

Some women avoid drinking calorie-filled cocktails, wine, and beer because they're worried about packing on the pounds. Now, a new study suggests that women who are moderate drinkers actually tend to gain less weight over time than teetotalers.