Chevron Execs Barred From Leaving Brazil

A judge barred 17 Chevron executives from around the world from leaving Brazil in an oil spill investigation as prosecutors readied new charges over a second spill involving the US energy giant.
Scientists Look Far to the North to Explain Young Whale in San Francisco Bay

Recent sightings of a gray whale and her infant calf swimming near Alcatraz and Sausalito in San Francisco Bay illuminated a likely repercussion of melting polar ice, scientists said.
Tullow Oil Confirms Major Find off coast of Ghana

Tullow Oil, the London-based explorer, has had a good week: two days after reporting soaring profits it confirmed that an oil strike off the coast of Ghana was a major find… Environmental concerns have raised as more oil companies begin drilling off the coast of Ghana. Does the country have the resources to cope with a major spill?