Daily Roundup: August 5, 2011

Shell Shock: Shell Oil got tentative federal approval to pursue a wide-spanning oil and gas operation in the the Arctic. Drilling may start in less than a year. Los Angeles Times

PAC Men: A new organization operating as a super PAC intends to lobby Congress toward energy-efficiency laws. Greenwire

Trunk Card: Dupont's new herbicide Imprelis, intended to kill weeds, has also destroyed thousands of trees. The product has been pulled off shelves. NPR

Incentive to Resist: America's biggest utility, Southern Co., estimates its losses to reach at least $13 billion if EPA's new rules go through. New York Times

Way to Go: Jennifer Pharr Davis broke the speed record for hiking the 2,175-mile Appalachian Trail. Her 46 days steals the record from Andrew Thompson. Discovery News

--Avital Binshtock