2022 marks the 50th anniversary of the Convention Concerning the Protection of the World Cultural and Natural Heritage (hereafter, the World Heritage Convention). This year is a time to celebrate achievements and reflect on the success of the Convention’s goals and the challenges that lie ahead. Of the many challenges, climate change has become “the most prevalent threat” to natural World Heritage sites and the greatest future threat. Climate change is also recognized as an increasing threat to cultural heritage. This Discussion Paper considers how the World Heritage Convention’s ‘List of World Heritage in Danger’ could be used more effectively for managing sites threatened by climate change or where climate change has already caused significant degradation. The purpose of the paper is to stimulate ideas and discussion to help further develop and finalise the draft Policy Document on climate action for World Heritage which is due to be adopted by the General Assembly of State Parties to the Convention in 2023.