[Smokin' Joe]

Well, if 40% of the spill is methane, then we only have to clean up 60%. The rest will dissipate.

There, I feel better already! (don't you?)

/sarc, of course!

[Blueflag]

Actually, we don’t even need to clean up 60%.

First, the methane will dissipate.

Secondly the lighter molecular weight aromatic hydrocarbons will evaporate.

Thirdly a portion will emulsify and/or be metabolized in the sea water.

What’s left needs to be cleaned up — the goo, the tar.

IT’s a mess for sure.