Wake Up and "Smell" The Methane

From Dr. Joseph Mercola:

We haven't heard much about the massive quantities of methane gas spewing out from BP's leak.

Given that the mixture belching forth is roughly half methane and other gases by mass, shouldn't we be concerned about the potential effects on climate, since methane is 26 more times as potent a greenhouse gas as carbon dioxide?

Methane is a large enough part of the leak that some have even suggested using it to measure how much crude has been released, since tracking methane is easier than tracking oil in seawater.