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Beyond historical variability

机译:超越历史的可变性

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摘要

The debate on climate change focuses almost exclusively on mean meteorological adjustments likely to occur by the years 2020, 2050 and 2100. The first of these is an immediate timescale, which society may consider preparing for now. The year 2050 is a time by which significant change might occur, and large-scale planning to counteract this should, arguably, commence soon. It may take the next three decades to implement major adaptation schemes, or to devise mitigation solutions that could potentially include geoengineering. Mora and colleagues' study provides two refreshing advances to our understanding of climate change. First, it concentrates on climate variability instead of overall mean change. Second, it identifies the year in which climate change will cross the threshold whereby events that are currently regarded as extreme become the norm. This may seem trivial - the authors are simply reinterpreting and inverting the same change versus year diagrams: but for a prescribed threshold. However, the subtle change of using scientifically based potential years of concern, as opposed to standard prescribed years such as 2050, may refocus the climate-policy debate.
机译:关于气候变化的辩论几乎完全集中于可能在2020年,2050年和2100年之前发生的平均气象调整。首先,这是一个即时时间表,社会可能会考虑立即进行调整。 2050年是一个可能发生重大变化的时期,可以说,应对这一情况的大规模计划应该很快开始。在未来的三十年中,可能需要实施主要的适应方案,或设计出可能包括地球工程技术的缓解方案。 Mora及其同事的研究为我们对气候变化的理解提供了两个令人耳目一新的进展。首先,它着重于气候变化而不是总体平均变化。其次,它确定了气候变化将越过阈值的年份,当前被视为极端事件的事件成为常态。这看似微不足道-作者只是在重新解释和颠倒相同的变化与年图的关系,但要有规定的阈值。但是,与2050年这样的标准规定年份相比,使用基于科学的潜在关注年份的细微变化可能会重新聚焦气候政策辩论。

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  • 来源
    《Nature》 |2013年第7470期|174-174|共1页
  • 作者单位

    Centre for Ecology & Hydrology, Wallingford OX10 8BB;

    College of Life and Environmental Sciences, University of Exeter, Exeter EX44RJ, UK;

  • 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
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