Icebergs melt during the summer, which decreases the albedo of the ocean surface by creating a darker surface that does not reflect solar radiation as a lighter surface would. This allows the ocean surface to become warmer, which leads to further melting. This is an example of a positive feedback mechanism.
Photo Credit: Ted Scambos and Rob Bauer, NSIDC
Originally uploaded in Integrate:Teaching for Sustainability.
Image 37778 is a 600 by 583 pixel JPEG
Uploaded: Nov28 12