The International Court of Justice was set to hand down a landmark ruling Wednesday on what, if anything, nations are legally obligated to do to prevent climate change and whether they are liable for ...

The United Nations' highest court will deliver an opinion on Wednesday that is likely to determine the course of future climate action across the world.

While non-binding, advocates hope the International Court of Justice's advisory opinion adds new weight to global courtroom and diplomatic efforts to win tougher climate policies.