NEW DELHI -- Climbing to the roof of the world is becoming less predictable and possibly more dangerous, scientists say, as climate change brings warmer temperatures that may eat through the ice and snow on Mount Everest.
NBC News Travel, NBC: News Travel
Wed, 04/23/2014 - 6:07pm
NEW DELHI -- Climbing to the roof of the world is becoming less predictable and possibly more dangerous, scientists say, as climate change brings warmer temperatures that may eat through the ice and snow on Mount Everest.