With El Niño over, winter could bring La Niña

The World

This year marked the end of the latest El Niño, a climate event that warmed the Pacific Ocean and played a role in 2024 becoming the hottest year on record. This winter, a La Niña could begin. The World’s Host Carolyn Beeler speaks to Chris Callahan, a climate scientist at Stanford University. He joined the show from Palo Alto, California.

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