Strange Circles that appeared on the surface of the frozen Lake Baikal in Siberia were spotted ... who said that the rings were the result of methane gas rising from the lake floor.

Frozen methane bubble photography is the new "cool" in adventure travel. Adventure travelers are always seeking unique ...

Right: Methane bubbles trapped in thermokarst lake ice. When ice-rich permafrost thaws, former tundra and forest turns into a thermokarst lake as the ground subsides. The carbon stored in the ...

Upon freezing, numerous gas bubbles began to appear in the water, filled not with air but with flammable methane gas. The lake further enhances the area's beautiful winter landscape. The gas ...