This Month in Photo of the Day: National Geographic Magazine Features

Methane is bubbling from lakes all over the warming Arctic. Here ecologist Katey Walter Anthony (at right) ignites a large bubble that was trapped by the fall freeze—then freed by an ice pick.

See more pictures from the December 2012 feature story "Good Gas, Bad Gas."

See how fuel is broken from rock »
Learn about the great shale rush »
Find out more about Emerging Explorer Katey Walter Anthony »