評論
打印
This cycle of warming, as huge areas start to absorb rather than
廣闊的區域并不反射而是吸收熱量
reflect heat, is the main reason why the Arctic,
因而 和北美面積一樣大的北極區域
a region the size of North America,
變暖速度是地球其他地方的兩倍
is warming twice as fast as the rest of the Earth.
而這個熱循環就是罪魁禍首
So, melting sea ice is a big issue.
正在融化的冰雪是個大問題
But there's another kind of ice that could have an even more
但還有另外一種冰雪可能會對我們的世界
dramatic impact on our world.
造成更深刻的影響
The ice that is found on land.
那就是在陸地上的冰川
This is fresh water ice,
這是淡水冰
formed from thousands of years of accumulated snowfall.
是由過去數千年里不斷的降雪積累而成的
This is the front of a glacier,
不管你信不信
quite a small one, believe it or not.
這是一塊非常小冰川的正面
Glaciers are like rivers of frozen fresh water
冰川就像是冰凍的淡水河
flowing across the surface of the land.
在陸地上縱橫交錯
This one, like most polar glaciers,
像大多數兩極冰川一樣 這塊冰川
is flowing down from a vast inland ice sheet.
正從一塊巨大的內陸冰原上緩緩流下
And it's what happens to those ice sheets
在這些冰原上發生的變化
that could radically alter the face of the planet.
會徹底改變地球的面貌
The Greenland ice sheet is by far the largest in the Arctic.
格林蘭冰原是目前北極最大的冰原
It's two miles thick in places
有些地方有兩英里厚
and six times the size of the United Kingdom.
面積是英國面積的六倍
