這是我們的星球,地球
It's unique in the solar system,
太陽系中獨一無二的
perhaps even in the universe.
甚至可能是宇宙中
My name is Iain Stewart
我是斯圖爾特
and I want to show you how our planet works.
我將向你展示我們的地球是怎么運作的
I am exploring ice.
我將要探索冰川
Ice may be nothing more than frozen water
冰川無非就是冰凍的水
but it holds extraordinary power.
但是它有特別的力量
Since human beings have been on the planet
自從地球上有了人類
nothing has done more than ice to shape our world.
沒有事物比冰川在塑造地球方面做的更多
It has carved the landscape,
它雕刻了景觀
unleashed terrible catastrophes
釋放可怕的災禍
and ice has helped drive the climate of the whole planet.
冰川還影響整個星球的氣候
It's even changed the course of human evolution,
它甚至改變?nèi)祟愡M化的進程
yet it may also threaten our future.
它當然也會威脅我們的未來
Only now are we beginning to understand the power of this remarkable substance.
現(xiàn)在讓我們開始了解這種非凡力量的實質(zhì)
Welcome to the world of ice.
歡迎來到冰封世界