In this horizon scan, we highlight 15 emerging issues of potential relevance to global conservation in 2020. Seven relate to potentially extensive changes in vegetation or ecological systems. These changes are either relatively new, for example, conversion of kelp forests to simpler macroalgal systems, or may occur in the future, for example, as a result of the derivation of nanocelluose from wood or the rapid expansion of small hydropower schemes. Other topics highlight potential changes in national legislation that may have global effect on international agreements. Our panel of 23 scientists and practitioners selected these issues using a modified version of the Delphi technique from a long-list of 89 potential topics.

中文翻译：

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2020年全球新出现的生物保护问题的地平线扫描。

在此次水平扫描中，我们重点介绍了2020年与全球保护潜在相关的15个新出现的问题。其中七个与植被或生态系统的潜在广泛变化有关。这些变化或者是相对较新的（例如，将海带森林转变为更简单的大型藻类系统），或者例如由于从木材中衍生出纳米纤维素或小型水电计划的迅速发展而可能在未来发生。其他主题强调了国家立法中可能对国际协议产生全球影响的潜在变化。我们由23位科学家和从业人员组成的小组使用Delphi技术的改进版本从89个潜在主题的长长列表中选择了这些问题。