"A week after the federal government released its latest recommendations for healthful eating, the 2015-20 Dietary Guidelines have touched off a food fight."

"President Obama's plan to safeguard the nation from increasing flood risk due to climate change was quietly green-lighted by Congress last month in the 2016 omnibus budget bill."

"Beneath the political storm raging around the Obama administration's climate change rules for the electricity sector, a quiet but powerful push for carbon trading is spreading across the nation."

"Pennsylvania will take new steps to cut methane emissions from natural gas wells and pipelines, and fill gaps in state policies that have allowed many sources in the sector to release the potent greenhouse gas without mandatory controls, Gov. Tom Wolf announced today."

"Widespread misreporting of harmful gas emissions by Chinese electricity firms is threatening the country's attempts to rein in pollution, with government policies aimed at generating cleaner power struggling to halt the practice."

"One of the rarest whales in the world has been spotted off the coast of South Carolina for the first time in three years."

"Ocean noise pollution caused by shipping, oil and gas development, and other human activities interfere with the ability of marine mammals to detect prey and communicate with one another. Yet some areas of the ocean remain refuges of quiet. Scientists hope these acoustic sanctuaries will be protected."

"On Jan. 20, the U.S. Department of the Navy will host a kickoff event, launching the first vessels of its Great Green Fleet at the San Diego Naval Air Station North Island, Carrier Pier. The GGF centerpiece is a carrier strike group—including an aircraft carrier and Arleigh Burke-class destroyer—deploying using energy conservation technologies, operating procedures and alternative energy in the course of its regular scheduled deployment in 2016."

"Paraguay could face problems this year with dengue and other fevers transmitted by mosquitoes, which have proliferated due to rainy weather during the Southern Hemisphere summer, a health ministry official said on Tuesday."