ICJ set to rule on landmark climate case

The world's top court was set to deliver a seminal ruling laying out what legal obligations countries have to prevent climate change and whether polluters should pay up for the consequences yesterday.

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It is the biggest case ever heard at the International Court of Justice and experts say judges' opinion could reshape climate justice forever, with major impacts on laws around the world.

The ICJ advisory opinion is "potentially one of the most consequential legal rulings of our times," said Joie Chowdhury, Senior Attorney at the Center for International Environmental Law, an advocacy group that backs the case.

The United Nations has tasked the 15 ICJ judges to answer two fundamental questions that, according to Mr Chowdhury, "strike at the heart of climate justice."