"TransCanada said Monday that it would reapply for a permit to build the Keystone XL pipeline from Canadian oil sands formations in Alberta to refineries on the Gulf of Mexico, assuring that the fiercely contested project will remain a source of political heat throughout the presidential campaign.

"Monsanto Co., the world's largest seed company, has won the dismissal of a lawsuit by growers of organic crops ... seeking to have its patents for genetically altered seeds invalidated."

"High levels of winter ozone air pollution have been recorded in a Utah oil and gas field — after the phenomenon was seen in Wyoming — raising concerns that such pollution could become more widespread."

"New Orleans, Houston and Albuquerque are losing trees faster than any other U.S. cities, and across the country tree cover is declining at a rate of about four million trees per year, finds new U.S. Forest Service research published in the journal 'Urban Forestry & Urban Greening.'"

The proposed Keystone XL pipeline for shipping Canadian tar-sands crude to Gulf-Coast terminals and refineries is likely to be a 2012 election issue. But some ranchers see it as an unwelcome invasion of their property.

"LONDON/NEW ORLEANS -- The trial to decide who should pay for the 2010 Gulf of Mexico oil spill has been delayed by a week, to allow BP Plc to try to cut a deal with tens of thousands of businesses and individuals affected by the disaster."

"Fans of The Lorax have raised concerns that the new big-screen version is neglecting the environmental message of the beloved Dr. Seuss book. The movie doesn't come out until March 2, but the initial trailer and promotional materials ignited a round of complaints on the web. Now people are having a (rather justified) heart attack about the fact that The Lorax is now being used to cross-promote a new SUV."

"AUSTIN -- The politically volatile Keystone XL pipeline is becoming embroiled in a widening controversy in Texas as supporters tout the promise of jobs and other economic benefits while increasingly vocal opponents say the project would trample property rights and endanger water supplies in East Texas."

"Suspicion is growing among Republican lawmakers that the Defense Department's efforts to move to renewable energy are more about politics than they are about saving lives and boosting security, as officials claim. The Pentagon's green push -- including outfitting Marines and soldiers with solar gear, testing aircraft and ships on biofuels and building renewable power plants at bases -- won supporters from both sides of the aisle over the past year as leaders drew a clear line between the technologies and military might."

"As Congress continues to debate whether to send penalties paid by oil giant BP PLC for the Deepwater Horizon disaster to Gulf Coast states, the Justice Department is positioned to have a major say in steering cash to restoration efforts."