Assessing global progress on human adaptation to climate change is an urgent priority. Although the literature on adaptation to climate change is rapidly expanding, little is known about the actual extent of implementation. We systematically screened >48,000 articles using machine learning methods and a global network of 126 researchers. Our synthesis of the resulting 1,682 articles presents a systematic and comprehensive global stocktake of implemented human adaptation to climate change. Documented adaptations were largely fragmented, local and incremental, with limited evidence of transformational adaptation and negligible evidence of risk reduction outcomes. We identify eight priorities for global adaptation research: assess the effectiveness of adaptation responses, enhance the understanding of limits to adaptation, enable individuals and civil society to adapt, include missing places, scholars and scholarship, understand private sector responses, improve methods for synthesizing different forms of evidence, assess the adaptation at different temperature thresholds, and improve the inclusion of timescale and the dynamics of responses.

评估人类适应气候变化的全球进展是当务之急。尽管有关适应气候变化的文献正在迅速扩大，但对实际实施程度知之甚少。我们使用机器学习方法和由 126 名研究人员组成的全球网络系统地筛选了超过 48,000 篇文章。我们对由此产生的 1,682 篇文章进行了综合，对已实施的人类对气候变化的适应进行了系统而全面的全球盘点。记录在案的适应主要是零散的、局部的和渐进的，转型适应的证据有限，风险降低结果的证据也可以忽略不计。我们确定了全球适应研究的八个优先事项：评估适应反应的有效性，加强对适应限制的理解，