To co-produce or not to co-produce? A critical examinationof the translation of IPCC climate science into nationaladaptation policies

承诺到2050年实现净零排放，并将气温上升控制在1.5摄氏度以下，只会减少而不是阻止气候变化的影响。我们现在必须适应。我们需要了解在哪里、谁会受到影响以及应该做些什么。政府间气候变化专门委员会（IPCC）试图通过其评估报告来做到这一点。自第一次报告以来的30年里，适应方面的进展仍然缓慢。目前还不清楚为什么一些国家的政策制定者未能实施有效的适应政策，而另一些国家则采取了雄心勃勃的政策。不作为往往是由于信息未能给决策者他们所需要的。为了解决这个问题，IPCC越来越多地让科学家和政策制定者参与到气候科学的共同制作中，以提高科学的可用性和使用。但是缺乏关于有效性的数据，也缺乏关于IPCC报告如何被用来提供适应性决定的数据。通过对官方文件和专家访谈的分析，本研究将为学者、实践者和政策制定者提供关于如何加快适应行动的重要见解。- 了解气专委的科学通报如何影响其在国家适应政策和决策中的使用-研究如何以及为什么，国家适应政策的发展因国家而异-检验联合制作在改善气候科学在适应政策制定中的可用性和使用方面所发挥的作用。

Commitments to reach net-zero emissions by 2050, andkeep temperature rise below 1.5C, will only reduce, notstop the impacts of climate change. We must adapt now.Information is needed on where, and who, will be affectedand what should be done. The Intergovernmental Panel onClimate Change (IPCC) has sought to do this via itsAssessment Reports. Thirty years since the first report,progress on adaptation remains slow. It is unclear why some national policymakers fail toimplement effective adaptation policies whilst others adoptambitious ones. Inaction is often due to information failingto give decision-makers what they need. To resolve this,the IPCC increasingly involves scientists and policymakersto co-produce its climate science to improve the usabilityand use of that science. But there is a lack of data on theeffectiveness or how the IPCC reports are used to informadaptation decisions. Through an analysis of officialdocuments and expert interviews, this research will givescholars, practitioners, and policymakers crucial insightsinto how to accelerate adaptation action.Uniting cross-disciplinary findings, this project aims to: - Understand how the IPCC's communication of scienceshapes its use in national adaptation policies and decision-making- Examine how, and why, national adaptation policiesdevelop differently across countries- Test the role played by co-production in improving theusability and use of climate science in adaptationpolicymaking.