The World Court concludes hearings on Friday on countries' legal obligation to fight climate change and whether large states contributing most to greenhouse-gas emissions should be liable for damage caused to small island nations.

Environmental campaigners from 98 countries and 12 organisations began giving evidence on Monday to the International Court of Justice in a landmark case aimed at laying down rules for how rich nations should support poorer ones on the frontlines of climate change.

The world’s highest court in the United Nation is deliberating on a case that could decide the world’s obligations to fight climate change and to protect smaller nations from its devasting impact, reports the Los Angeles Times.