Bubbles Full of Trouble

In a lake in Alberta, Canada, there is a lake with bubbles, not the good kind but the
effecting-the-Earth-in-a-bad-way-kind. These bubbles are filled with methane, a greenhouse gas like carbon dioxide. Like carbon dioxide, methane absorbs heat and makes the earth warmer. But if the ice that the methane is trapped under melts, all that methane will escape and-gulp- speed up climate change because of releasing millions of tons of methane EACH YEAR!