It's possible that rain on the desert floor could turn to thin sheets of ice when temperatures drop at night.

当夜间气温下降时，沙漠地面上的雨水有可能变成薄冰。

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After lying for hours on cold ground, with only a thin sleeping bag to protect you from rain or ice, your fingers would probably be so numb that you could hardly move them.

在冰冷的地面上躺上几个小时后，只有一个薄薄的睡袋来保护你免受冰雨侵害，你的手指可能会麻木到几乎动不了。

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Then, when snow or rain wash them onto an ice floe, they darken its surface and thus cause it to melt faster.

随后，雪或雨水将他们冲刷到冰面上，冰的表面会变黑，因而融化的也更快。

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Signs of climate change include an increase in rain when there used to be only snow, new plant life,and melting ice sheets.

VOA: special.2009.06.03

The same brutal Arctic cold front that's already delivered subzero temperatures across the upper Midwest and Northeast is forecast to bring ice and freezing rain to the South and Mid-Atlantic states on Friday.

CNN: Fierce cold 'a constant blast in the face' for many

In China, they use artillery shells, rockets and airplanes to spray existing cloud systems with silver iodide, a compound that triggers moisture in the clouds to form ice crystals, which then fall to earth as snow or rain.

WSJ: Blizzard Renews Storm Over China Making Snow

One way to increase the probability of rain is to seed the formation not of water droplets, but of ice crystals, an important step in precipitation.

ECONOMIST: Aerobiology