这次以及其他的价格冲击是由苏联的干旱和美国玉米带的作物减产引起的。

This and other price shocks were event-driven—drought in the Soviet Union, crop-shrinking heat in the U.S. Corn Belt.

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但是这次和往常其他的价格冲击是由苏联的干旱和美国玉米带的作物减产引起的。

But this and other price shocks were event-driven—drought in the Soviet Union, crop-shrinking heat in the U.S. Corn Belt.

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在把气候模型和各种变化模式相结合之后，“美国的玉米生产带未来产量会出现明显的减产。”尼尔森告诉记者。

In one combination of climate models and scenarios, "the corn belt in the United States could actually see a significant reduction in productivity potential," Nelson told reporters here.

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