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When the wind kicks up in the Sahara desert,
当风吹过撒哈拉大沙漠的时候
huge volumes of dust, rich in minerals,
蕴含丰富营养物质和矿物质的砂粒和粉尘
are lifted into the air to be blown out across the Atlantic.
被扬到空气中并被吹过大西洋
Here, much of it falls into the sea.
大部分都落进了海洋
But some is carried on the wind all the way across the Atlantic
但还有一些被风带到了大西洋的彼岸
to the Amazon rainforest of South America.
到了南美的亚马逊雨林
In fact, a staggering 40 million tons of dust
实际上，每年都有4亿吨粉尘
is transported from the Sahara to the Amazon every year.
被风从撒哈拉大沙漠带到亚马逊雨林
Here, the rain washes it out of the atmosphere
在这，雨水把大气中的
and onto the forests below,
粉尘冲刷到雨林中
where it's a vital source of minerals that keep the rainforest healthy.
这是维持雨林正常生长的重要的营养源
In this way, the constantly swirling atmosphere
通过这种方式，不断翻卷的大气层
plays a critical role in the cycle of life on Earth.
对地球上生命的循环起着重要的作用
It creates the weather.
它创造了气候
At the heart of all weather is heat.
任何气候的核心都是热量
This is three months of weather packed into just a few seconds.
这是在几秒里显示了三个月的天气状况
The clouds are generated by moisture from the oceans and the land.
云是由从海洋和大陆上蒸发的水分产生的
