"Wildfires crackled across Siberia this summer, turning skies ochre and sending up enough smoke from burning pines to blot out satellite views of the 400-mile-long Lake Baikal."

"UN weather and climate agency says hole over Antarctica is larger due to colder stratosphere but will shrink again".

"Suspected poachers have used cyanide to kill 23 elephants in Zimbabwe's Hwange national park, raising the death toll there and in the northern part of the country to 60 since late September, officials said on Thursday."

"One of the last wild runs of chinook salmon in California is sinking fast amid the four-year drought and now appears perilously close to oblivion after the federal agency in charge of protecting marine life documented the death of millions of young fish and eggs in the Sacramento River."

"A prominent Agriculture Department scientist is alleging that he was suspended after complaining that the agency was blocking his research into the harmful effects of pesticides on pollinators, such as bees and butterflies."

"A sudden spike of earthquakes in southern Kansas is raising eyebrows in the region, where there have been more earthquakes in the past two weeks than there were in the years between 1990 and 2013."

"NEW ORLEANS - Gulf coral damage from the massive BP oil spill is more extensive than previously thought, according to a new study that revealed sick and dying corals in the rich, deep-water environment off the coasts of Alabama and Mississippi known as the Pinnacles."

"The rapid warming of the waters off New England has contributed to the historic collapse of the region’s cod population and has hampered its ability to rebound, according to a study that for the first time links climate change to the iconic species’ plummeting numbers."

"Plans by about 150 countries to curb greenhouse gas emissions will slow climate change this century and keep alive a goal of limiting a rise in temperatures to two degrees Celsius (3.6 Fahrenheit), the United Nations said on Friday."

"Democratic presidential candidate Hillary Clinton has joined the ranks of politicians and environmentalists calling for a federal investigation of ExxonMobil."