What do you think? Leave a respectful comment.

United Nations Secretary General Antonio Guterres delivers the opening address at the 73rd session of the United Nations General Assembly at U.N. headquarters in New York. Photo by Shannon Stapleton/Reuters

UN chief: ‘Pivotal moment’ for fighting global warming

UNITED NATIONS — U.N. Secretary-General Antonio Guterres says the world has reached “a pivotal moment” in global warming and risks runaway climate change if leaders don’t act in the next two years.

He is telling world leaders at the U.N. General Assembly that they aren’t doing enough to combat what he calls “a direct existential threat” that is moving faster than people are working to combat it.

He notes that thick, permanent sea ice north of Greenland began to break up this year for the first time.

He’s calling for making sure the international Paris climate change agreement is implemented. U.S. President Donald Trump has announced he’s withdrawing his country from the pact.

Guterres is planning a climate summit next year.

WATCH: Trump addresses United Nations General Assembly

The Latest