The biggest revelation uncovered by researchers in recent years is the discovery of water on the moon, in ice and rocks, across huge craters and vast lunar plains.

近年来研究人员的最大发现就是月球上有水，这些水在冰和岩石中，分布于巨大的陨石坑和广阔的月球平原上。

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As the ice spread, however, it gradually covered the silicate rocks, slowing the erosion and so allowing CO2 to build up in the atmosphere once more.

但是，随着冰层扩展逐渐覆盖了硅酸盐岩石，使岩石形成放缓，所以导致CO2在大气层中再次聚积。

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Just as the relentless movement of water in rivers and streams can smooth the jagged edges of rocks over time, ocean currents can smooth ice fragments into round shapes.

奔流不息的河水，随着时间流逝，能够将边缘锋利的石头打磨光滑，与此类似，洋流也可以将冰块的边缘打磨圆润。

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These changes may have resulted in earlier snow melt and exposure of darker rocks, soil and sea ice, leading to warming throughout Greenland in the late 19th and early 20th Centuries when soot levels were at their highest.

BBC: Human activities have left a visible mark on the Arctic

It is a cracked and crumpled layer-cake of rocks, 480 million years in the making, a landscape sculpted by ice then transformed by man and a witness to the birth of the Industrial Revolution.

UNESCO: Global Geoparks