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Mr. Cox said that he flew over parts of Iowa in a helicopter last spring after a severe storm and found that deep gullies had formed in unprotected farmland, becoming conduits for soil runoff.

考克斯先生说去年春天一场暴风雨之后他坐直升机飞过爱荷华州的部分地区发现未受到保护的土地上在冲刷后已经形成了一些深沟，这些深沟成了土壤表层流失的管道。

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The flooding, which began on the night of 31 January, was caused by a combination of a high spring tide, deep atmospheric low pressure which raised sea levels and exceptionally strong northerly gales, which led to a surge of sea water over coastal defences.

BBC: Flooded street in King's Lynn

Almost a year since the Arab Spring began, I have witnessed cycles of promise and now feel a deep sense of worry for what 2012 will bring.

FORBES: What Role For Women After The Arab Spring?

Now, more than ever, we expect change overnight, and while it appeared to change that quickly in the Middle East this spring, deep, meaningful and sustained change takes a long time.

FORBES: How The Occupy Wall Street Protesters Can Learn From Saudi Women