OPEC has withdrawn from the oral statement portion of The International Court of Justice's advisory opinion on the Obligations of States in respect of Climate Change.

What legal obligations do states have to fight climate change? Should high-emitting countries be held responsible for the harm they've caused? And should states safeguard the climate for future generations?

The International Court of Justice, the United Nations’ highest judicial body, is beginning landmark hearings on global warming. Here’s a guide.