"The alcohol in silage can drive significant ozone formation, exceeding the contribution from tailpipe emissions."

"Urban farming is a growth industry in New York city's concrete jungle, and with little open land free agriculturalists and beekeepers have taken to the rooftops to pursue their passion."

"A study to be published this year by Ecuadorean glaciologist Bolivar Caceres suggests that the country's glaciers lost more than 40% of their surface area between 1956 and 2006."

"Scientists have discovered a fast-moving deep ocean current with the volume of 40 Amazon Rivers near Antarctica that will help researchers monitor the impacts of climate change on the world's oceans."

"Voluntary carbon offsets are a 'Wild West' market ripe for fraud, exaggeration, and poorly run projects that probably do little to ease global warming."

"Metro communities from White Bear Lake and Maplewood to South St. Paul are discovering that their storm-water ponds are chemical soups of pesticides, fertilizers, pet wastes, oil, grease and other contaminants."

"The discovery of methane gas and benzene has transformed a 50-acre neighborhood into an environmental case study — a reminder of Southern California’s history as a center of the oil industry."

"The U.S. Supreme Court on Monday rejected a legal request by Michigan aimed at keeping voracious Asian carp out of the Great Lakes where they are considered a threat to fisheries."

"BP crews raced to protect the Gulf of Mexico coastline as a remote sub tried to shut off an underwater oil well gushing 42,000 gallons a day from the site of a wrecked drilling platform."

"Prospects for the Senate climate bill grew even dimmer yesterday after the trio working on a comprehensive measure emerged from a closed-door meeting headed in separate directions -- both literally and figuratively."