"Underfunded agency faces the challenge of finding answers to key questions: When did Exxon's pipeline rupture and when did the company learn of the spill?"

"CLEARWATER -- Despite warnings from scientists, rising sea levels still seem little more than a distant, imperceptible threat, a phenomenon whose change is measured in centimeters over decades."

"Giant snail invasion puts more than 500 plant species and even stucco and plaster at risk. More than 1,000 giant African land snails caught each week in Miami and invasion expected to spread in upcoming rainy season."

"Before Disney World, Silver Springs in Central Florida was for decades one of the state's most popular tourist destinations."

"They’re back. Seventeen years after a major swarm of bug-eyed cicadas staged one of nature’s weirdest — and loudest — mating rituals, their offspring are preparing to rise in Washington’s suburbs and the Mid-Atlantic."

"Two Arkansas women sue ExxonMobil after its Pegasus pipeline ruptured, spewing oil onto lawns and roads. The $5 million class-action suit charges the pipeline spill has permanently diminished their property value."

"A 'rank' odor that has spread across parts of greater New Orleans may be linked to a leak from the 192,500-barrel-per-day Chalmette refinery, the U.S. Coast Guard investigating the smell said on Thursday."