Awe-Inspiring Antarctica, Up Close

Few people have actually witnessed, first-hand, the effects of climate change on Antarctica. But Sebastian Copeland, an award-winning photographer and environmental activist, has made it a personal mission to document this fragile and quickly changing part of the world. His latest book, "Antarctica: A Call to Action" does that through images.

In this photo, passengers and crew of the Ice Lady Patagonia, representing 13 nations, assembled in the shape of an "SOS" on an iceberg in the Gerlach Strait, Antarctica, Feb. 6, 2006. The group had originally planned to assemble in the shape of a penguin but that proved too difficult. "The message, to me, is clearer and to the point," Copeland said. "The image is iconic. Thirteen nations are represented on this forlorn piece of ice."

(Sebastian Copeland)