Consumption is higher, at about 4,500 cubic kilometres a year, of which agriculture takes about 70%.

消耗的水更多，约为每年4500立方千米，其中农业用水约70%。

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Such "supervolcanoes" would include eruptions that release more than 1000 cubic kilometres of material.

超级火山将会包括那些会释放1000立方公里材料的火山爆发。

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Every year, thousands of cubic kilometres (km3) of fresh water fall as rain or snow or come from melting ice.

每年，雨雪和融冰所带来的淡水资源有几千立方千米。

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In the same period, Lake Conway filled with an additional 1.2 cubic kilometres (1.2 trillion litres) of water.

BBC: Satellite images reveal the changes in volume of water

The impact that created the Malaren crater (which happened about a billion years ago) fragmented 250 cubic kilometres of rock.

ECONOMIST: Geothermal energy

For example, a feature known as Lake Englehardt took just under three years to empty two cubic kilometres (2 trillion litres) of water.

BBC: Satellite images reveal the changes in volume of water