Watch
ABC's Catalyst on methane. It's good.... but I can't remember if it has the footage of methane bubbling up from the floor of the Arctic circle. There's columns of methane bubbling up from the ocean floor, as well as under the Siberian tundra.
Anyone see footage of scientists collecting methane in a plastic bag from tundra bubbles, and then narrowing the bag's "mouth", turning it right side up, and lighting the escaping methane? Pretty graphic.