Climate change is a global crisis that requires countries to act on both domestic and international levels. This paper examines how climate policies in these two arenas are related and to what extent domestic and international climate ambitions are complementary or disparate. While scholarly work has begun to assess the variation in overall climate policy ambition, only a few studies to date have tried to explain whether internationally ambitious countries are ambitious at home and vice versa. According to the common view, countries that are more ambitious at home can also be expected to be more ambitious abroad. Many scholars, however, portray the relationship instead as disparate, whereby countries need to walk a tightrope between the demands of their domestic constituencies on the one hand and international pressures on the other, while preferring the former over the latter. This study uses quantitative methods and employs data from the OECD DAC dataset on climate finance to measure international climate ambitions. Overall, the present work makes two major contributions. First, it provides evidence that international climate financing ambition is complementary to domestic climate ambition. Second, the article identifies the conditional effect of domestic ambition—with regard to responsibility, vulnerability, carbon-intensive industry and economic capacity—on international climate ambition.

气候变化是一场全球危机，需要各国在国内和国际层面采取行动。本文研究了这两个领域的气候政策如何相关，以及国内和国际气候目标在多大程度上是互补或不同的。虽然学术工作已经开始评估整体气候政策雄心的变化，但迄今为止只有少数研究试图解释具有国际雄心的国家是否在国内雄心勃勃，反之亦然. 普遍认为，国内雄心勃勃的国家在国外也有望雄心勃勃。然而，许多学者将这种关系描述为完全不同的关系，各国需要一方面在国内选民的要求和另一方面在国际压力之间走钢丝，同时更喜欢前者而不是后者。本研究使用定量方法并利用经合组织 DAC 气候融资数据集的数据来衡量国际气候目标。总的来说，目前的工作有两个主要贡献。首先，它提供了国际气候融资目标与国内气候目标相辅相成的证据。其次，文章确定了国内野心的条件影响——关于责任、脆弱性、