Petermann Glacier from above, originally uploaded by Dave Walsh Photography.
Petermann Glacier, seen from above, northwestern Greenland. To get a sense of scale, I’d say you’re looking at an area about 1.5km wide.
Writer, photographer, environmental campaigner and "known troublemaker" Dave Walsh is the founder of Blather.net, described both as "possibly the most arrogant and depraved website to be found either side of the majestic Shannon River", and "the nicest website circulating in Ireland". Half Irishman, half-bicycle. He lives in southern Irish city of Barcelona.