El Nino and La Nina not only disrupt weather patterns but also play a role in triggering agricultural, public health, political, and economic issues.

Following the powerful El Niño of 2023–2024, one of the most intense in recent memory, climate scientists are now turning their eyes toward La Niña, which may shape Earth’s fate in 2025. With NOAA ...

El Niño and La Niña sometimes don’t follow the expected patterns. And strength matters: A strong El Niño, for instance (as measured by how high sea-surface temperatures are above normal) ...

Learn how El Nino and La Nina can contribute to severe weather leading to heavy storms in some regions and droughts in others. Read about the causes and effects of El Nino and La Nina.

What’s the difference between La Niña and El Niño? Why do we care? And most importantly, what’s in store for winter as we move from 2020 into 2021? Climate science is tricky, but there are some ...

The current El Niño is now one of the strongest on record, new data shows, catapulting it into rare “super El Niño” territory, but forecasters believe that La Niña is likely to develop in ...

El Niño helped drive global average temperatures to new records over the last year. Forecasters say it's waning, but that 2024 may still be one for the record books.

After three consecutive years of an unusually stubborn pattern, La Niña has officially ended and El Niño is on the way, the National Oceanic and Atmospheric Administration said Thursday.

La Niña essentially gets its name from being the opposite of El Niño. It has also been called “El Viejo, anti-El Niño, or simply a ‘cold event,'” NOAA says.

“The old La Niña playbook and the old El Niño playbook don’t seem to be as reliable as they used to be,” said Jan Null, an adjunct professor of meteorology at San Jose State University.

A strong El Niño pattern has been in place over the Pacific Ocean during the 2023-2024 winter season. This year's winter impacts of warmer weather may vary wildly as the Pacific Northwest ...