Petermann Glacier from above

Arctic: Climate change: Blue Melt River, Petermann Glacier
Blue Melt River, Petermann Glacier, in remote northwestern Greenland, on Nares Strait. Photographed during a 2009 Greenpeace expedition to investigate the effects of climate change in the Arctic. In 2010 and 2012 Petermann calved ice islands totalling 400 square kilometres.

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.

Chief Bottle Washer at Blather
Writer, photographer, environmental campaigner and "known troublemaker" Dave Walsh is the founder of, 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.