CNN – Gulf oil spill now nation’s worst

CNN – Gulf oil spill now nation’s worst

The Gulf of Mexico undersea gusher has already spilled more oil than the Exxon Valdez disaster – possibly more than twice as much, making it the largest oil spill in U.S. history – government scientists said Thursday.

Scientists observed 130,000 to 270,000 barrels of oil on the water’s surface on May 17, and think a similar amount had already been burned, skimmed, dispersed or evaporated.