Gulf Oil Spill: Gulf Methane Levels One Million Times Greater Than Normal
As much as 1 million times the normal level of methane gas has been found in some regions near the Gulf of Mexico oil spill, enough to potentially deplete oxygen and create a dead zone, U.S. scientists said on Tuesday.







First Posted: 06/23/10 02:59 PM ET Updated: 05/25/11 05:50 PM ET