"Colorado State University forecasters predicted the Atlantic hurricane season that began on Wednesday would be a busy one with 16 tropical storms and nine of those growing into hurricanes."

"Moderate increases in temperature and rainfall can herald cholera epidemics, a study in East Africa has found, and researchers urged governments to use those environmental cues to better protect vulnerable populations."

"A World Health Organization panel has concluded that cellphones 'possibly carcinogenic,' putting the popular devices in the same category as certain dry cleaning chemicals and pesticides, as a potential threat to human health."

"Libya’s enormous aquatic reserves could potentially become a new weapon of choice if government forces opt to starve coastal cities that heavily rely on free flowing freshwater."

"Greenland has condemned as illegal a protest by Greenpeace activists who scaled an oil rig in a bid to prevent a British company from drilling in Arctic waters off the North Atlantic island."

"Scientists have been using small variations in the Earth’s gravity to identify trouble spots around the globe where people are making unsustainable demands on groundwater, one of the planet’s main sources of fresh water."

"Japan will pay schools near the quake-ravaged Fukushima nuclear power plant to remove radioactive top soil and set a lower radiation exposure limit for schoolchildren after a growing outcry over health risks."

"The record leap in global greenhouse gas emissions last year has thrown the spotlight on the world's only concerted attempt to stem the tide of global warming -- the United Nations climate negotiations."

"The annual G8 Summit concluded this afternoon with agreement among leaders of the world's largest industrial democracies to strengthen nuclear security in view of Japan's ongoing nuclear power plant crisis."

"Nuclear fuel at the stricken Fukushima Daiichi power plant began melting just five hours after Japan’s March 11 earthquake, a Japanese nuclear engineer told a panel of U.S. scientists Thursday."