知识世界

Environment:Continent of Ice

Antarctica is the coldest place on the earth. It's often minus 50℃ in most places， and winds can freeze exposed human skin at further 30 degrees. But lots of animals and a few plants are well adapted to the cold， and live here comfortable. In some places， microscopic creatures live inside rocks. They appear streaks of color in the rock. Antarctica is covered with a permanent sheet of ice， in some places， five kilometers thick. The scientists are trying to find out whether the glaciers are moving forward and getting bigger or whether they are retreating possibly because of global warming.

• 01

  Environment： The Infinite Voyage —— Crisis in the Atmosphere

  
• 02

  Environment： Thirsty Planet（1）

  
• 03

  Environment： Waves in the Ocean

  
• 04

  Environment： Ice Worlds: Life at the Edge

  
• 05

  Environment： Something in the Air

  
• 06

  Environment： Building Blocks

  
• 07

  Environment： The Pond - Community Ecology in Action

  
• 08

  Environment： The Endless Voyage — Survivors

  
• 09

  Environment： The Nature of Things——The Living City

  
• 10

  Environment： It's in the Water