The U.N.'s climate chief called on the oil and gas industry on Thursday to make a drastic shift to a clean, low-carbon future or risk having to leave three-quarters of fossil fuel reserves in the ground."

"MOSCOW — Even as American and Russian diplomats groped toward a settlement that would halt further Russian military intervention in Ukraine, Gazprom, the Russian energy company, stepped up the economic pressure on Tuesday by sharply raising the price it charges for natural gas."

"Anticipation has repeatedly turned into frustration in the search for signs of Flight 370 as objects spotted from planes in a new search area west of Australia have turned out to be garbage. It's a time-wasting distraction for air and sea crews searching for debris from the Malaysia Airlines flight that vanished March 8."

"Sometimes bad things come in small packages. A microbe that spewed humongous amounts of methane into Earth's atmosphere triggered a global catastrophe 252 million years ago that wiped out upwards of 90 percent of marine species and 70 percent of land vertebrates."

"The UN's International Court of Justice (ICJ) has ruled that Japan's Antarctic whaling programme is not for scientific purposes."

"YOKOHAMA, Japan — Climate change is already having sweeping effects on every continent and throughout the world’s oceans, scientists reported on Monday, and they warned that the problem was likely to grow substantially worse unless greenhouse emissions are brought under control."

"One of the 70 authors of a draft U.N. report on climate change said he had pulled out of the writing team because it was 'alarmist' about the threat."

"As the United States seeks to strengthen sanctions on Moscow for its occupation of Crimea, energy experts say the powerful Russian oil industry would make a robust target. But any penalties on energy investments, technology transfers and financial transactions would most likely also punish Western oil companies like Exxon Mobil that are investing heavily in Russia."

"When the World Trade Organization ruled this week that China must again start exporting rare earth elements key to manufacturing high tech and defense products, traders and the markets that need the materials rejoiced. But less happy were the Chinese who claim complying will hurt the environment."

"Labeling tags were not attached to 1,500 valves controlling the flow of radioactive water in piping and other equipment at the Fukushima No. 1 nuclear power plant in the aftermath of the March 2011 disaster, sources said."