One year after the Deepwater Horizon blow-out began the worst oil spill in US history, scientists continue to investigate the effects of the oil and its residues.
The study's leaders say rates of methane decomposition after the Gulf oil spill 'were faster than had ever been recorded in any other place on the planet.' Other scientists are cautious about the results.
The debate over how much oil remains in the Gulf and where it is continues as research groups, environmental organizations, and government scientists conduct separate missions.
Halfway through a 10-day voyage, a government-sponsored expedition isn't finding any traces from the Gulf oil spill, directly contradicting findings by several independent research teams.
The new estimate from marine scientists comes two weeks after a report that prompted rosy conclusions from some Obama administration officials about the Gulf oil spill.
Signs of recovery from the Gulf oil spill are already appearing, but scientists caution that many unknowns exist – including the effect of millions of gallons of oil dispersants.
Large quantities of methane released by BP's oil blowout aren't fouling beaches like the Gulf oil spill is, but could endanger a key link in the undersea food chain.
Gulf gas: The BP oil spill has increased the amount of methane gas in the waters of the Gulf of Mexico, with the potential of creating 'dead zones' for fish and other aquatic wildlife.
New figures could mean 42 million gallons to more than 100 million gallons of oil have already fouled the Gulf's delicate ecosystem.