When sea-surface temperatures are above average by about 1 degree Fahrenheit or more, El Niño can develop. When temperatures are below average, La Niña can form. When temperatures are at or near ...

El Niño and La Niña are parts of an oscillation in the ocean-atmosphere system (called the El Niño Southern Oscillation, or ENSO cycle) that can impact weather and climate conditions across the ...

However, one agricultural meteorologist says as El Niño fades, La Niña is already knocking at the door, and it could bring dryness to the southern U.S. The biggest question is now timing.

catapulting it into rare “super El Niño” territory, but forecasters believe that La Niña is likely to develop in the coming months. But this so-called super El Niño’s strength won’t ...

The butterfly effect suggests that small changes in a system can have a large impact on eventual outcomes. One metaphor used ...

Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo.

The tropical Pacific Ocean is changing. The strong El Niño is rapidly ending, and we may see the opposite condition called La Niña developing. The switch from El Niño to La Niña will probably ...

A new international study led by researchers at Tulane University shows that the El Niño and La Niña climate patterns affect nearly half of the world's mangrove forests, underscoring the vulnerability ...

TUCSON, Ariz. (KGUN) — El Niño and La Niña episodes have been shown through numerous studies to have widespread weather impacts, especially on larger scale weather patterns. But what about ...

This page contains information on El Niño, La Niña, and how these important patterns influence your weather here in Canada. Browse our video and news galleries and feel free to share this ...