New York regulators are working on a new plan that may limit more tightly the use of the pesticide aldicarb -- which has shown up in the shallow aquifer on which Long Island is especially dependent for drinking water.

"U.S. EPA's plan to sidestep state officials and oversee climate rules in Texas has been temporarily blocked by a federal court, making the Lone Star State the only place where businesses cannot apply for greenhouse gas permits that the Obama administration now requires."

"The battle over whether oil companies should be allowed to drill in Alaska's Arctic National Wildlife Refuge is nothing new — but the fight over nearby public land called the National Petroleum Reserve-Alaska is."

"Top 10 lists are often relentlessly negative: the 10 most-polluting industrial plants, the 10 most befouled beaches, and so on. The spirit of this list is slightly different: Good or bad, these are environmental moments in 2010 that are most likely to reverberate in the world of environmental news in 2011 and beyond."

"Australian troops and emergency workers were Monday battling huge flooding in the country's northeast that has left at least two people dead, with the worst devastation yet to come for some areas."

"The U.S. Environmental Protection Agency will directly enforce new greenhouse-gas rules in parts of Arizona after the state refused to submit its own program for controlling the pollutants."

"The headline news for the coal industry in 2010 was what didn't happen: Construction did not begin on a single new coal-fired power plant in the United States for the second straight year."