"Ocean acidification triggered by massive volcanic eruptions helped cause the worst mass extinction in the history of life on Earth, according to a new study."
"Home improvement chain Lowe's Cos Inc will stop selling a type of pesticide suspected of causing a decline in honeybee populations needed to pollinate key American crops, following a few U.S. retailers who have taken similar steps last year."
"KINGSTON - President Barack Obama on Thursday unveiled a major clean energy partnership at a Caribbean summit where he sought to reassert U.S. leadership in the region at a time when the economic clout of oil-producing Venezuela appears to be receding."
"An iconic Alaska tree may warrant protection as a threatened or endangered species due to climate warming, the U.S. Fish and Wildlife Service announced Thursday."
"The Atlantic Ocean will see a 'well below average' number of hurricanes this season due to cooler Caribbean waters and a strong El Nino effect, forecasters with Colorado State University predicted on Thursday."
"U.S. consumer groups, scientists and food companies are testing substances ranging from breakfast cereal to breast milk for residues of the world's most widely used herbicide on rising concerns over its possible links to disease."
"Federal biologists will consider increasing Endangered Species Act protections for the northern spotted owl, reflecting the bird’s continued slide toward extinction despite steep logging cutbacks in the Northwest. The United States Fish and Wildlife Service said Wednesday that there was enough new information in a conservation group’s petition to warrant looking at changing the owl’s listing from threatened to endangered."
"The glaciers of the Canadian West could shrink by 70 percent by 2100, according to new research that has implications for predicting glacier loss around the world."
"Radon levels in buildings near unconventional natural gas development in Pennsylvania are higher than those in other areas of the state, suggesting that hydraulic fracturing has opened up new pathways for the carcinogenic gas to enter people’s homes, according to a study published on Thursday. Radon is the second leading cause of lung cancer worldwide."
"Pacific Gas & Electric Corp must pay a record $1.6 billion in penalties stemming from a natural gas pipeline explosion in 2010 that killed eight people near San Francisco, California's chief utility regulator ordered on Thursday."
