versity of Georgia  believe that much of the oil from the BP spill is still present underwater in the Gulf of Mexico, where its impact on aquatic life is far from clear" />
<meta name="keywords" content="bp, oil, spill, gulf, mexico, invisible, dispersed, deepwater horizon, Charles Hopkinson" />
<meta name="byline" content="Bryan Walsh" /><meta name="srce" content="/time Magazine" />
<meta name="head" content="Oil from Spill Could Still Pose Major Threat" />
<meta name="path" content="/time/health/article/0