With its profound effect on Asia's weather and water systems,
由于對亞洲氣候和水資源體系的深遠影響
the Tibetan plateau helps to sustain almost half the world's population.
青藏高原養活了差不多一半的世界人口
For the moment,at least.
至少在現在就是這樣
Close to the summit of Mount Everest,
在接近珠穆朗瑪峰峰頂的地方
a forest of ice once covered much of the area.
冰層曾經覆蓋過大部分的地域
But now,thanks to climate change,
但是現在由于氣候的變化
much of it has gone.
大部分冰層消失了
Within the next 30 years
在接下來的30年里
it's predicted that 80% of the Tibetan glaciers could disappear.
預計西藏80%的冰川將會消失
In many ways,
從許多方面來說
Tibet's fragile environment is the barometer of our world.
西藏脆弱的環境是世界生態的晴雨表
What happens to it today,
它今天發生了什么,
in time,will affect us all.
遲早會影響到所有人