Hillary-Tenzing landmark melting
The glacier from which Sir Edmund Hillary and Tenzing Norgay began their ascent of Everest in 1953 has retreated by about three miles because of global warming since they became scaled the world's
The glacier from which Sir Edmund Hillary and Tenzing Norgay began their ascent of Everest in 1953 has retreated by about three miles because of global warming since they became scaled the world's