Abraham Lake in Alberta Canada is home to a rare phenomenon where bubbles of methane gas get frozen underneath the surface of the ice.  The plants that lie on th bed of this artificial lake release methane gas which gets frozen as it comes close to the much colder lake surface. As the weather gets colder the bubbles stack up beneath the ice.

Abraham Lake, Alberta
Abraham Lake in Alberta Canada is home to a rare phenomenon where bubbles of methane gas get frozen underneath the surface of the ice. The plants that lie on th bed of this artificial lake release methane gas which gets frozen as it comes close to the much colder lake surface. As the weather gets colder the bubbles stack up beneath the ice.