Add to Lightbox
Low altitude, Hubbard Glacier this is the very face of the advancing glacier. Some people, believe this melting is caused by Global Warming but the science is still out on the conclusion. Wrangell-St. Elias National Park, Alaska, USA.
Jeff Daly/Visuals Unlimited, Inc.
all images © Visuals Unlimited
Visuals Unlimited, Inc. specializes in, microscopy, healthcare, medical, wildlife, underwater, agriculture, and science stock photography.