Many kids and adults aren't getting enough Vitamin D. The solution may be as simple as spending more time in the sun.

"They are not cute and cuddly, but the smalltooth sawfish is getting more federal protection in Southwest Florida waters."

"On New Year’s Day, 2009, in the tiny northeast Pennsylvania town of Dimock, a drinking-water well blew up because of a methane leak associated with natural-gas drilling nearby."

"In a mile-high duel, driven firefighters are determined to keep flames from the historic facility."

"Duke Energy’s departure from the star-crossed American Coalition for Clean Coal Electricity seems to have less to do with the viability of clean coal than with the viability of the groups that promote it."

"Geothermal startup AltaRock Energy Inc on Wednesday said it has suspended its demonstration project in California due to geologic anomalies."

"BP announced on Wednesday the discovery of what it characterized as a giant oil field several miles under the Gulf of Mexico, but it may take years to assess how much crude can actually be recovered."

A new study using CFTC data shows that speculators have come to dominate the oil futures market since Congress eased commodity regulations in 2000.

"Gov. Arnold Schwarzenegger sent a letter to Secretary of the Interior Ken Salazar and Secretary of Commerce Gary Locke asking them to reverse the federal government’s restrictions on water use intended to protect fish in the Sacramento-San Joaquin River Delta."

"Areva, a French nuclear construction company, said this week that its project to build the world's most powerful reactor remained mired in delays and was over-budget by 2.3 billion euros, or about $3.3 billion."