"Agriculture ministers from the Group of 20 leading economies agreed Thursday on measures intended to lift global production and improve supplies of basic foods, while mitigating price swings."

"Wary of a new surge in gas prices, the Obama administration said Thursday it is selling off 30 million barrels of oil from the country’s emergency reserves as part of a broader international response to lost oil supplies caused by turmoil in the Middle East and North Africa, particularly Libya."

"The science behind a new report in the Proceedings of the National Academy of Sciences journal is complicated, but the evidence is more precise than it has ever been: Sea levels are now rising at a faster rate than they were at any time in the past 2,000 years."

"Steps to boost atomic safety after Japan's Fukushima accident must be 'cost-effective,' an industry body said on Tuesday, a day after the UN nuclear chief suggested power firms could help pay for expanded safety checks."

"The state of the oceans is declining far more rapidly than most pessimists had expected, an international team of experts has concluded, increasing the risk that many marine species -- including those that make coral reefs -- could be extinct within a generation."

"The U.N. nuclear chief proposed international safety checks on reactors worldwide to help prevent any repeat of Japan's atomic crisis, a plan which may face resistance from nations worried about outside involvement."

"A system to clean massive amounts of contaminated water at the site of Japan's nuclear disaster was shut down Saturday, just hours after it began full operations, because a component filled with radioactivity much more quickly than expected."

"The Arabian Oryx, whose distinctive horns are widely believed to have given rise to the unicorn legend, is back from the brink of extinction in the deserts of the Arabian peninsula."

"The impact of skyrocketing food prices is echoing across the globe, in households and in the corridors of power ahead of a summit in Paris next week of G20 farm ministers."