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

A new international study led by researchers at Tulane University shows that the El Niño and La Niña climate patterns affect ...

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 ...

Marked by colder surface water in the eastern Pacific — in contrast to El Nino events that bring hotter waters — La Nina ...

While predictive skill for El Niño and La Niña events — part of what is known as the El Niño-Southern Oscillation, or ENSO — has improved significantly in recent decades, it isn’t perfect ...

More Kevin Carter/Getty Images El Niño and La Niña are opposing climate patterns that disrupt normal conditions in the Pacific Ocean. During normal conditions, trade winds blowing west along the ...

Here's what to know about the El Niño and La Niña patterns and how they affect the weather in Arizona. La Niña, and its counterpart El Niño, are climatological events that are part of a ...

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 ...

La Niña, the cool-water “little sister” of El Niño, took its time coming to life this season. Sea surface temperatures in the equatorial Pacific didn’t definitively dip below the La Niña threshold ...

It's official: El Niño is gone. We're now under ENSO conditions. And get ready, because chances are high La Niña will be here during the peak of the 2024 Atlantic hurricane season. Let's explain ...

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 ...