ICE is a formidable force for change. Even so, it is hard to grasp that it shaped the world we inhabit. Our society owes its existence to the ice ages. We feed ourselves from crops grown on soils made from ancient wind-blown dust and the fine-grained products of glacial erosion. We build with materials mined from the ancient channels of glacial meltwater. Over the past 10,000 years, after the last ice age and in an unusually stable period of Earth's climatic history, humans have been able to exploit these glacial resources and develop the world as we see it today.
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