An opinion by the World Court finds new legal requirements in the Paris Agreement, raising legal questions about the U.S. signing the treaty with Senate approval

A landmark opinion delivered by the United Nations' highest court last week that governments must protect the climate is already being cited in courtrooms, as lawyers say it strengthens the legal arguments in suits against countries and companies.

HONOLULU (AP) — Honolulu is not alone in its effort to sue fossil fuel companies to hold them accountable for climate change harms, but the city’s lawsuit is further along than similar litigation across the country. A hearing on Tuesday will indicate how these fights play out in court.

THE HAGUE, July 23 (Reuters) - The United Nations' highest court on Wednesday underlined "the urgent and existential threat posed by climate change" as it started to read out an opinion on the legal obligations of states to take action.

The ICJ issued an opinion on climate change that stated the obligations of the Paris Agreement come with legal liability. A concern raised by Trump as early as 2017.

The United Nations’ top court in a landmark advisory opinion says countries could be in violation of international law if they fail to take measures to protect the planet from climate change, and nations harmed by its effects could be entitled to reparations.

Nations must protect current and future generations from environmental harm, says the International Court of Justice.

Journalist and author Kel Richards discusses Vanuatu’s Climate Change Minister threatening Australia with legal action.