"Federal officials plan to ban sales of raw oysters harvested from the Gulf of Mexico unless the shellfish are treated to destroy potentially deadly bacteria -- a requirement that opponents say could deprive diners of a delicacy cherished for generations."

"President Obama's envoy for climate change has dashed hopes of a bilateral climate-change deal during next month's presidential trip to China. Todd Stern says a wide gap remains between Chinese and U.S. officials. China and the U.S. account for 40 percent of all greenhouse gas emissions."

"The Obama administration and some Senate Democrats expressed fresh urgency on Tuesday about the need to address climate change and refashion the nation's energy economy."

"Nearly identical bills to prevent cruise ships from discharging raw, untreated sewage in U.S. coastal waters were introduced Wednesday in both Houses of Congress."

"The U.S. Fish and Wildlife Service today announced six grant awards totaling $800,000 to fund research into the cause and control of white-nose syndrome, a wildlife health crisis that has now killed more than a million bats in the Northeast and remains unchecked."

"The latest mass escape from a British Columbia fish farm has led to renewed calls from the New Democratic Party to change how the farms are run."
 

"A House committee is investigating whether the coal industry's largest influence group failed to accurately report its lobbying spending to Congress."

"COPENHAGEN -- Legislators from 16 of the world's major economies and most major political parties have agreed on key guiding principles to enact climate change legislation in their home countries that will drive the move to a global low carbon economy. Meeting this weekend, the lawmakers agreed to act right now in their own legislative bodies, even before the key UN climate deal in Copenhagen, now just six weeks away."

"The demise of a much-studied pack raises questions about lifting the hunting ban in areas bordering Yellowstone park."