Top UN court says countries can sue each other over climate change 12 hours ago Esme Stallard and Georgina Rannard BBC News Climate and Science Share Save 0:31 Watch: Activists react to landmark UN climate change ruling outside The Hague A landmark decision by a top UN court has cleared the way for countries to sue each other over climate change, including over historic emissions of planet-warming gases. But the judge at the International Court of Justice in the Hague, Netherlands on Wednesday said that untangling who caused which part of climate change could be difficult. The ruling is non-binding but legal experts say it could have wide-ranging consequences. It will be seen as a victory for countries that are very vulnerable to climate change, who came to court after feeling frustrated about lack of global progress in tackling the problem.