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The challenge of hot drought

机译:高温干旱的挑战

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摘要

Drought is heating up around the warming world. Particularly hot drought has cost more than US$40 billion and claimed 218 human lives since 2010 in the United States alone. These hot and dry conditions have also contributed to unusually widespread and devastating wildfires, fuelled by wide expanses of weakened and dead trees that were unable to deal with heat stress and subsequent insect attack. Yet, to get a real sense of how this recent change in drought severity might shape the future, one has to look to the past. An analysis of regional and pan-continental North American drought over the past 1,000 years, reported by Cook et al. in the Journal of Climate, makes it clear that recent droughts, as costly as they have been, are only a taste of what might lie ahead, independently of any big climate change.
机译:在变暖的世界,干旱正在升温。自2010年以来,特别是高温干旱造成的损失超过400亿美元,仅在美国就有218人丧生。这些炎热和干燥的条件还导致了大范围的毁灭性野火,其原因是大面积的衰弱和枯死的树木无法应对热胁迫和随后的昆虫袭击。然而,要想真正了解近期干旱严重程度的变化如何影响未来,就必须回顾过去。根据库克等人的报告,对过去1000年间北美地区和泛大陆性干旱的分析。 《气候杂志》(Journal of Climate)明确指出,与以往一样昂贵的近期干旱,只是对未来可能发生的滋味,而与任何重大的气候变化无关。

著录项

  • 来源
    《Nature》 |2013年第7476期|350-351|共2页
  • 作者

    JONATHAN T. OVERPECK;

  • 作者单位

    Departments of Geosciences and of Atmospheric Sciences, University of Arizona, Tucson, Arizona 85721, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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