"Pacific Gas and Electric Co. could face a record fine for a deadly 2010 natural gas pipeline explosion in a San Francisco suburb. Officials hope it will help prevent future accidents while some warn that rising natural gas demand is outpacing investment in energy infrastructure."
"The United States' new proposal to let countries draft their own emissions reduction plans rather than working toward a common target can unlock languishing U.N. climate negotiations, the U.S. climate change envoy said on Tuesday."
"Living near a toxic waste site may represent as much of a health threat as some infectious diseases, a study in three developing countries finds."
"Scientists say that foxes in Arctic regions who feed on ocean prey are being exposed to dangerous levels of mercury."
"The California condor, the largest bird in North America, was saved from extinction by a captive breeding program that increased its numbers in the wild. But now the condor is facing a new and pernicious threat — the lead from bullets used by game hunters."
"Acidification is an additional stress on an ecosystem already under pressure from rapid sea ice loss, study warns."
"The Arctic ecosystem, already under pressure from record ice melts, faces another potential threat in the form of rapid acidification of the ocean, according to an international study published on Monday.
"MISSOULA, Montana -- The U.S. Fish and Wildlife Service is preparing to remove a population of grizzly bears from the Endangered Species Act, under which they are now listed as a threatened species."
"BILLINGS, Montana — State officials in the Northern Rockies on Monday lined up against a federal proposal to give new protections to the carnivorous wolverine, as climate change threatens to melt the species' snowy mountain strongholds."
"Palisades Nuclear Power Plant in southwestern Michigan was taken offline Sunday after operators discovered a leak from a water tank. Although the tank has leaked twice in less than a year, officials say there is no immediate risk."
"The Earth's wettest regions are likely to get wetter while the most arid will get drier due to warming of the atmosphere caused by increased levels of carbon dioxide, according to a new NASA analysis of more than a dozen climate models."
