"After a generation of effort, New England's waters are clean enough to support an oyster industry. But climate change could undermine those gains."

"CANBERRA -- The summer ice melt in parts of Antarctica is at its highest level in 1,000 years, Australian and British researchers reported on Monday, adding new evidence of the impact of global warming on sensitive Antarctic glaciers and ice shelves."

The 2013 Pulitzer Prize for National Reporting went to InsideClimate News, a 5-year-old web-only nonprofit, for its book-length feature series on the 2010 Enbridge tar-sands oil spill that fouled miles of Michigan's Kalamazoo River. InsideClimate has been one of the most aggressive media outlets covering the current spill in Mayflower, Arkansas. ExxonMobil recently threatened one of InsideClimate's reporters with arrest for trying to find a federal government press office handling the spill.

"PORTLAND, Maine -- Ocean temperatures have been higher than normal in the Gulf of Maine, creating worries among lobstermen that there could be a repeat of last spring's early harvest that resulted in a market glut, a crash in the prices fishermen get and a blockade of Maine-caught lobsters in Canada."

"NOAA has issued a report on a small part of the recent brutal droughts that have hit the United States over the past few years. The report — 'An Interpretation of the Origins of the 2012 Central Great Plains Drought' — is needlessly confusing, scientifically problematic, and already leading to misleading headlines."

"You might have been wondering whether the Obama administration was going to impose the first-ever greenhouse gas limits on new power plants, since the deadline is April 13."

"WASHINGTON -- Last year's huge drought was a freak of nature that wasn't caused by man-made global warming, a new federal science study finds."

"Under proposed new national science standards, students would learn concepts more thoroughly, including how human activity is driving global warming."

"Ohio State scientist Lonnie Thompson tests the limits of science -- and his health -- to unlock climate secrets frozen at the top of the world's highest mountain ranges."