When methane and freezing cold water fuse under tremendous pressure, they create a substance as paradoxical as it coveted: burning ice. Earlier in the year, a report from the National Research Council identified the combustible water, also known as methane hydrate, as a potential source of natural gas. Now, according to the Chinese news organization Xinhau, China is joining the US, Japan, and South Korea in the hunt for this weird mineral. Icy Hot : courtesy of NASAAs explained in this comic, there's 85.4 trillion cubic feet of methane hydrate buried under Alaska. That's equivalent to 3 billion tons of...