Environments that push the human body to its limits
World Service,路6 episodes
Marine biologist Tony Rice discusses the abyss, the world's open trenches in the ocean
Robert Swan was the first person to travel to both the North and the South Pole
The Tibetan name for Everest is Chomolungma
Antarctica is Earth's southernmost continent and is the coldest place on Earth
The temperature in the Sahara desert can get up 54掳C
Space starts at the point known as the K谩rm谩n line and is at an altitude of 100km
