The El Niño Southern Oscillation (ENSO) is a natural pattern of ocean and atmospheric changes in the tropical Pacific Ocean that can influence the weather pattern ...

El Nino could develop later this year, increasing the risk of record-breaking global heat, according to forecasts from several major weather agencies.

NOAA is to start using a new index, known as 'RONI,' to classify El Niño and La Niña events.

El Niño might be back later this year; major climate agencies that closely watch the tropical Pacific have recently updated ...

Two major weather agencies think it's increasingly likely that El Niño will form in the eastern tropical Pacific Ocean later ...

The El Niño-Southern Oscillation (ENSO), the most prominent interannual climate variability signal, has been widely studied for its teleconnections with Antarctic sea ice variability. However, its ...

The Climate Prediction Center said there's a 60% chance the climate phenomenon exits between February and April this year.

While La Niña is currently holding its own, the expectation is that an El Niño will develop by the peak of hurricane season. Here's why that's a big deal.

A study has identified a key change that has amplified the impact of El Niño on Arctic sea ice. The effect has been observed ...

One expert says 2027 could be even hotter than the last three years, which have been the top three warmest on record ...

El Niño–Southern Oscillation (ENSO) is a coupled ocean–atmosphere phenomenon centered in the tropical Pacific, characterized by quasi-periodic fluctuations between warm (El Niño), cold (La Niña), and ...