While 75% of our planet is covered with water, only about 2% is fresh water that comes from rivers, lakes, ice and snow.

虽然地球的75%被水覆盖，但只有大约2%是来自河流、湖泊、冰雪的淡水。

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'Geo-engineering plans to inject stratospheric aerosols or to seed clouds would act to cool the planet, and act to increase the extent of sea ice,' says Rasch.

拉施说：“地球工程计划将平流层的气溶胶注入到云层中，这将起到冷却地球的作用，并增加海冰的范围。”

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Although we live on a water-covered planet, only 1% of the world's water is available for human use, the rest locked away in oceans, ice, and the atmosphere.

虽然我们生活的地球大部分都被水覆盖，但是世界上水资源只有1%可供人类利用，其余的大部分都存在于海洋，冰块以及大气层中。

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Instead of mythological gods doing battle with ice giants the Pilgrims of a planet called Plymouth are warring against the Indians from the planet of Indi over the stuffing mines.

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Researchers say this back-from-the-dead trick has implications for how ecosystems recover from the planet's cyclic long periods of ice coverage.

BBC: Centuries-old frozen plants revived

This has enabled scientists to estimate the volume of water in the ice cap and speculate that much of the planet's original water is either hidden below the surface or missing.

BBC: By BBC News Online Science Editor Dr David Whitehouse