Flammable Ice

New Scientist has a gas with the latest alternative energy source, flammable ice.

…[I]t could be the world’s last great source of carbon-based fuel – assuming we can mine methane hydrates, crystal lattices of ice that trap methane beneath ocean beds and permafrost.

Apparently it’s really tricky getting the gas out without either melting all the ice or somehow triggering massive, tsunami-causing blowouts.