Threat: More dead zones?

The oil gushing from the busted well in the Gulf of Mexico contains about 40 percent methane and could suffocate marine life and create "dead zones." That's according to John Kessler, a Texas A&M University oceanographer who's studying the impact of methane from the spill. Dead zones are areas where oxygen is so depleted nothing lives. "This is the most vigorous methane eruption in modern human history," Kessler said. (Source: AP via Mobile Press-Register, 06/18/10) Efforts to recover the oil took a step forward with 25,000 barrels captured Thursday by two different surface vessels, according to Coast Guard Adm. Thad W. Allen. But there's still oil and gas surging from around a containment cap on the damaged BP wellhead, Allen said. (Source: Washington Post, 06/18/10)