The United Nations' highest court on Wednesday said countries must address the "urgent and existential threat" of climate change by cooperating to curb emissions, as it delivered an opinion set to determine future environmental litigation.

The International Court of Justice called global warming an “urgent and existential threat” at a closely watched case in The Hague.

The World Court calls climate change an 'urgent and existential threat' in a landmark opinion:: The Hague, Netherlands:::: Yuji Iwasawa, International Court of Justice President"The Court notes that the consequences of climate change are severe and far-reaching.