The world’s biggest climate case begins at The Hague in the Netherlands today. Oral arguments will be heard by the International Court of Justice, or ICJ, which will consider what obligations United Nations member states have under international law to protect the planet from greenhouse gas emissions for future generations.

THE HAGUE -- The top United Nations court will take up the largest case in its history on Monday, when it opens two weeks of hearings into what countries worldwide are legally required to do to combat climate change and help vulnerable nations fight its devastating impact.