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The world's glaciers are one of nature's most impressive and enduring backdrops -- epic in size and grandeur. They are also a massive, undeniable casualty of climate change. Now, internationally acclaimed photographer James Balog has captured thousands of majestic glacier images that serve as unprecedented visual evidence -- grabbing at the gut and allowing us to visualize the change firsthand. Chasing Ice documents Balog's three-year quest to capture the natural world in transformation.