El Niño and La Niña are the warm and cool phases of a natural climate pattern across the tropical Pacific known as the El Niño-Southern Oscillation, or “ENSO” for short.

Life on Earth runs on cycles,day and night, seasons, and tides. But one of the most powerful and far-reaching climate cycles ...

For countries in the Southern Hemisphere, El Niño events are typically associated with higher-than-average temperatures, while La Niña events are associated with increased rainfall.

Duke University. "Weather-changing El Nino oscillation is at least 250 million years old." ScienceDaily. ScienceDaily, 21 October 2024. <www.sciencedaily.com / releases / 2024 / 10 / 241021170400 ...

Editor's Note: This story was updated at 10 a.m. EDT. on July 12 to note that the El Niño Southern Oscillation climate cycle, not a specific El Niño event, can be predicted well in advance.

The El Niño event, a huge blob of warm ocean water in the tropical Pacific Ocean that can change rainfall patterns around the globe, isn't just a modern phenomenon. A new modeling study from a pair of ...

El Niño is one half of the alternating El Niño-Southern Oscillation, or ENSO, cycle, a shifting system of contrasting climate phenomena dictated by trade wind patterns and their resulting ...