International hybrid law is a method of approaching issues through an interdisciplinary lens, taking into consideration the interconnected nature of issues which may not be adequately addressed from a single field of law. It has developed since 2007 to respond to climate change from three perspectives: environmental, human rights and refugee or migration law. It has demonstrated the interrelations between these different perspectives and that an environmental issue like climate change cannot be addressed without having considerable direct or subsidiary impacts on human rights or migration. It is a recognition of the intertwined causal relations around climate change and reframes states’ responsibility to respond in a comprehensive manner.