hard number on how fast the oil is degrading, we can't put a hard number on how much oil is still left." <span class='see'><a href='http://www.time.com/time/video/player/0,32068,83190883001_1987392,00.html' target='_blank'>(Watch TIME's video "Oil Spill Anxiety on the Bayou.")</a></span></p>

<p>Joye adds that the federal government hasn't taken into account the impact of all the methane that was released by the blown Macondo along with the oil. But it's important to realize that while we can't put hard num