"Images of a scientific observation buoy floating in what appeared to be an Arctic lake near the North Pole lit up the online world in the past week, sparking questions about whether this was a sign of global warming."

"The Dead Zone, an area of oxygen so low that Gulf-bottom organisms are killed and fish and crabs swim away, covered 5,840 square miles of Gulf of Mexico seafloor along Louisiana's coastline this summer, according to a survey by scientists based at the Louisiana Universities Marine Consortium."

"Despite above-average precipitation, lake has seen below-average water levels for 14 years running. Less ice cover and more dark open water may explain why."

"SAN ANTONIO, Texas -- To address thousands of raw sewage discharges  in violation of the Clean Water Act, the San Antonio Water System has agreed to a $1.1 billion upgrade to its infrastructure and will pay a $2.6 million civil penalty."

"A Gulf of Mexico drilling rig has partially collapsed off the coast of Louisiana after catching fire because of a ruptured natural gas well, U.S. regulators said on Wednesday."

"After a three-decade delay, the U.S. Environmental Protection Agency has proposed the first controls that would significantly curb power plant discharges of toxic coal ash and sludge into the nation's waterways, according to a report by five national environmental organizations."

"At first glance, Daliuta in northern China appears to have a river running through it. A closer look reveals the stretch of water in the center is a pond, dammed at both ends. Beyond the barriers, the Wulanmulun’s bed is dry."

"The operator of Japan's stricken Fukushima nuclear power plant said on Monday that contaminated ground water had likely been flowing into the sea, acknowledging such a leakage for the first time."