Global warming is expected to have beneficial impacts on overwintering crops in cool and temperate regions of the world. Now, statistical analysis that combines different sources of historical yield and meteorological data reveals that decreases in snowpack insulation partly reduce yield benefits of winter wheat.

中文翻译：

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积雪减少带来的霜冻风险

预计全球变暖将对世界凉爽和温带地区的越冬作物产生有益影响。现在，结合不同历史产量来源和气象数据的统计分析表明，积雪保温层的减少部分降低了冬小麦的产量效益。