The blue color you see is due to the compression of the ice through the years. The blues come when you think the ice is melting, global warming is a sad reality and these magnificent features of the Patagonian landscape are vanishing one drop at a time. Will future generations see a glacier in all its glory? This picture shows a glimpse of the Southern Patagonian Ice Field (South border), the world's second largest contiguous extra-polar ice field. Luckily, it's away from pollution sources.