International

"Exxon Mobil Corp.’s dream of drilling in the Russian Arctic may risk running aground on the politics of Ukraine."

"Six environmental advocates from India, Peru, Russia and three other nations have won this year's Goldman Prize, which is awarded annually for grass-roots activism."

"The government withheld findings on estimated radiation exposure for Fukushima returnees for six months, even though levels exceeded the long-term target of 1 millisievert a year at more than half of surveyed locations."

"In 1997, Toyota caught its competitors by surprise with the revolutionary Prius, the first commercially successful gasoline-electric hybrid car. Now, the Japanese firm is trying to do the same with a technology that seems straight out of science fiction."

"March 2014 was the fourth-warmest March on record globally, according to recently released NASA data, making it the 349th month — more than 29 years — in which global temperatures were above the historic average."

"BANGKOK — As head of his village, Prajob Naowa-opas battled to save his community in central Thailand from the illegal dumping of toxic waste by filing petitions and leading villagers to block trucks carrying the stuff — until a gunman in broad daylight fired four shots into him."

"World leaders on Friday discussed plans to expand sustainable access for water, sanitation and hygiene, focusing in particular on how to reach those in remote rural areas and slums where development projects have been slow to penetrate."

"BERLIN -- The cost of keeping global warming in check is "relatively modest," but only if the world acts quickly to reverse the buildup of heat-trapping gases in the atmosphere, the head of the U.N.'s expert panel on climate change said Sunday."

"The chances have increased over the past month that the much-feared El Nino phenomenon, which has the potential to wreak havoc on global crops, would strike by summer in the Northern Hemisphere, the federal U.S. weather forecaster said Thursday."

"The amount of carbon dioxide in the Earth's atmosphere has exceeded 402 parts per million (ppm) during the past two days of observations, which is higher than at any time in at least the past 800,000 years, according to readings from monitoring equipment on a mountaintop in Hawaii. Carbon dioxide, or CO2, is the most important long-lived greenhouse gas responsible for manmade global warming, and it is building up in the atmosphere due to the burning of fossil fuels such as coal, oil and natural gas."