Some 1300 species of mistletoe -- a plant long used to mark the solstice holiday -- defy many of the conventional ideas surrounding them.

"Savannah River Site will permanently seal in place more Cold War-era storage tanks after removing highly radioactive liquid nuclear waste."

"A Republican lawmaker in Wyoming is taking a stand in favor of teaching climate science in the classroom."

"NASA scientists say that, during the summer, Arctic is absorbing 5 percent more of the sun’s incoming energy than just 15 years ago. The trend coincides with the steady decrease in Arctic sea ice during the same period."

"The price of natural gas has fallen in recent months due to mild winter weather."

"The Environmental Protection Agency (EPA) cannot regulate lead ammunition used by hunters, a federal appeals court said Tuesday."

"A federal appeals court today threw out U.S. EPA's decision to extend a compliance deadline for its ozone air standard, as well as the agency's revoking a stringency requirement for transportation projects."

"A series of severe storms - including tornadoes - touched down in three southern states Tuesday, killing four people, damaging homes and businesses, flipping cars, knocking down trees, and downing power lines."

"LOS GATOS, Calif. — Three punishing years of drought have parched California streams, rivers and wetlands. One animal has the potential to restore these dry landscapes."

"MILAN, N.M. - Jonnie and Milton Head's granddaughter won't bring her children to visit them at their home here in the Bluewater Valley. 'There's five times the EPA recommended daily dosage of airborne radiation,' Jonnie explains."