UN chief: El Niño a ‘warm-up act’ for climate change

By Zack Colman | 07/31/2026 01:38 PM EDT

U.N. Secretary-General António Guterres implored nations to slash fossil fuel use as record heat and wildfires affect large areas of the globe.

Antonio Guterres speaks into bundle of microphones.

United Nations Secretary-General António Guterres speaks during a news conference inside the U.N.-controlled buffer zone in the divided capital of Nicosia, Cyprus, on Wednesday. Petros Karadjias/AP

The El Niño pattern that’s supercharging disasters in much of the world is a glimpse of what’s coming as temperatures rise because of fossil fuel use, said United Nations Secretary-General António Guterres on Friday.

He compared the current El Niño to other crises that are upending the world, including the Iran war, which has led to higher energy and food prices.

His warning came as the World Meteorological Organization said Friday that the El Niño event is intensifying and is expected to drive global weather patterns through October, potentially affecting droughts, heat waves, floods and wildfires.

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“Now it is inside the house — and turning up the heat,” Guterres said in prepared remarks. “But according to the latest science, this is only a warm-up act.”

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