"The disaster at the Fukushima Daiichi nuclear plant in March released far more radiation than the Japanese government has claimed. So concludes a study that combines radioactivity data from across the globe to estimate the scale and fate of emissions from the shattered plant."

"Rapidly growing megacities in Africa and Asia face the highest risks from rising sea levels, floods and other climate change impacts, says a global survey aimed at guiding city planners and investors."

"The Fukushima Plate is tableware with its own built-in safety mechanism. Underneath the plate is a radiation meter that logs whether your sushi has absorbed too much seaborne radiation from the Fukushima disaster earlier this year."

"TIANJIN, China -- China and Taiwan have agreed to cooperate on nuclear safety in the aftermath of Japan's nuclear crisis."

Clyde Butcher, a photographer who lives in the Everglades, uses his nature photographs to support calls for conservation. He's a member of the International League of Conservation Photographers, who address issues ranging from poaching to global warming.

"Like oil in the 20th century, water could well be the essential commodity on which the 21st century will turn."

"ABUJA -- A Nigerian community from the oil-rich Niger Delta has filed a lawsuit in the United States seeking $1 billion in compensation from Anglo-Dutch oil major Shell for decades of pollution caused by oil spills."

"Some 5 to 20 million tons of debris--furniture, fishing boats, refrigerators--sucked into the Pacific Ocean in the wake of Japan's March 11 earthquake and tsunami are moving rapidly across the Pacific. Researchers from the University of Hawaii tracking the wreckage estimate it could approach the U.S. West Coast in the next three years, the UK Daily Mail reports.

"CARTAGENA, Colombia -- More than 170 countries agreed Friday to accelerate adoption of a global ban on the export of hazardous wastes, including old electronics, to developing countries."

"Countries around the world are selling more than twice as much Atlantic and Mediterranean bluefin tuna than international standards allow, according to a new report from the Pew Environment Group. The report, released earlier this week, compares the recorded volume of Atlantic bluefin tuna caught and traded in the Mediterranean Sea and northeastern Atlantic Ocean with catch quotas set by the intergovernmental body responsible for regulating the fish's trade."