articleProceedings of the National Academy of SciencesAug 15, 2017GREEN OA

Temperature increase reduces global yields of major crops in four independent estimates

CZChuang ZhaoBLBing LiuSPShilong PiaoXWXuhui WangDBDavid B. Lobell

Peking University · Nanjing Agricultural University · +28 more institutions

PubMed
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Abstract

Significance Agricultural production is vulnerable to climate change. Understanding climate change, especially the temperature impacts, is critical if policymakers, agriculturalists, and crop breeders are to ensure global food security. Our study, by compiling extensive published results from four analytical methods, shows that independent methods consistently estimated negative temperature impacts on yields of four major crops at the global scale, generally underpinned by similar impacts at country and site scales. Multimethod analyses improved the confidence in assessments of future climate impacts on global major crops, with important implications for developing crop- and region-specific adaptation…

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Topics & keywords

Topics
Keywords
  • Food security
  • Climate change
  • Environmental science
  • Crop
  • Global warming
  • Crop yield
  • Yield (engineering)
  • Population
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