"President Obama should press Chinese President Xi Jinping to curb emissions of a short-lived, but highly potent heat-trapping pollutant when the leaders meet this week in California, a group of House and Senate Democrats wrote Wednesday to Obama."

"The operator of the wrecked Fukushima nuclear plant said it had found another leak of contaminated water on Wednesday, piling pressure on the utility to curb the problem as it seeks permission to release water to the sea."

"PORTLAND -- A genetically modified test strain of wheat that emerged to the surprise of an Oregon farmer last month was likely the result of an accident or deliberate mixing of seeds, the company that developed it said Wednesday."

"As Secretary of State John Kerry lauded Polish Foreign Minister Radoslaw Sikorski in Washington, D.C., yesterday for his country's hosting of this year's U.N. climate change summit, activists lambasted the Eastern European nation as a climate scoundrel."

"No bases visited, no vets interviewed for Pentagon probe into dioxin in Okinawa."

"MADRID -- Scientists across the Mediterranean say a surge in the number of jellyfish this year threatens not just the biodiversity of one of the world's most overfished seas but also the health of tens of thousands of summer tourists."

"Dozens of crabs, three small sharks and scores of fish thump on the slippery deck of the fishing boat True Prosperity as captain Shohei Yaoita lands his latest haul, another catch headed not for the dinner table but for radioactive testing."

"MELROSE PARK, Ill. — From the roof of the Gottlieb Memorial Hospital in the Chicago suburbs, an 83-year-old retired doctor finds troubling evidence of why so many people are sneezing and itching their eyes."

"Japan, the biggest importer of soft white wheat grown in Oregon and Washington, postponed a 25,000-ton order from a Portland grain shipper Thursday, the first market fallout after the discovery of genetically engineered wheat plants growing in an eastern Oregon field where they shouldn't have been."

"PARIS — The European Union on Thursday agreed to an overhaul of the region's fisheries policy, a deal intended to make commercial fishing more sustainable."