Heres another good thought, look at that map again, see the dots where the most methane is Deposited? Think of them as 100 foot dynamite sticks and line them around all of the continents, not just ours, the shores of all land on Earth is lined with explosions, now keep heating the planet up, dont ya think its gonna blow one day?
It surely will. Not sure when though hehehe thats the big game of it all.
<img src=http://www.ornl.gov/reporter/no16/hydmap.jpg border="1">
The reason the Military and Science want to turn this into fuel is so they can hide it from the populations as being the most global threat presented to mankind.
Events like this is what wiped out the Dinosaurs.