The so-called "Giudizio Universale" has marked the beginning of climate change litigation in Italy. From a procedural point of view, this kind of strategic litigation raises several procedural issues, like legal standing, forum choice and burden of proof. Moreover, in climate change disputes, justiciability itself is a stake, as the courts are required to be involved in political matters, which should instead be the responsibility of the legislative and executive branches of government. With this in mind, the Department of Law of the University of Turin and the Universidade Católica Portuguesa, as part of the Law Schools Global League (LSGL), organised a comparative workshop on climate change litigation, to deepen these aspects in an international environment made up of young academics and researchers, presenting national and international climate cases and other interesting related topics. This volume contains the proceedings of the workshop, which took place in Turin on 9 th June 2023.