Methane bubbles trapped in thermokarst lake ice

Image: Methane bubbles trapped in thermokarst lake ice

Detailed Description

When ice-rich permafrost thaws, former tundra and forest turns into a thermokarst lake as the ground subsides. The carbon stored in the formerly frozen ground is consumed by the microbial community, who release methane gas. When lake ice forms in the winter, methane gas bubbles are trapped in the ice.

Details

Image Dimensions: 3264 x 2448

Date Taken:

Location Taken: AK, US