"Species of plants and animals are becoming extinct at least 1,000 times faster than they did before humans arrived on the scene, and the world is on the brink of a sixth great extinction, a new study says."

"Disappearing puffins, stray whales, invading sailfish: The North Atlantic is in a bad way. Here's why."

"The world's food supplies are at risk because farmland is becoming rapidly concentrated in the hands of wealthy elites and corporations, a study has found."

"Oil companies ExxonMobil and BP defy the United States by collaborating with Russia in the energy sector. ExxonMobil and BP have separately signed agreements with Rosneft, Russia's state-owned oil company."

"Carbon dioxide levels throughout the northern hemisphere hit 400 parts per million (ppm) for the first time in human history in April, an ominous threshold for climate change, the World Meteorological Organization said on Monday."

"President Obama is expected to announce on Monday an Environmental Protection Agency regulation to cut carbon pollution from the nation’s fleet of 600 coal-fired power plants, in a speech that government analysts in Beijing, Brussels and beyond will scrutinize to determine how serious the president is about fighting global warming."

"The court established in the southern province of Fujian has appointed 12 specialist consultants who will assist litigators on technical issues, Xinhua news agency reported."

"Pope Francis made the biblical case for mitigating the effects of climate change, speaking to a massive crowd in Rome."

"Climate change threatens to undermine not only how much food can be grown but also the quality of that food as altered weather patterns lead to a less desirable harvest, according to a new study."

"China and Russia signed a $400 billion gas deal on Wednesday, giving Moscow a megamarket for its leading export and linking two major powers that, despite a rocky history of alliances and rivalries, have drawn closer to counter the clout of the United States and Europe."