El Niño and La Niña drive seasonal weather patterns over Canada and across the world. Explore these high-impact events and how they affect weather here at home.

Two of the planet's most powerful natural climate influencers, El Niño and La Niña, have shaped global weather patterns for ...

These patterns are all tied to the El Niño-Southern Oscillation (ENSO), which is the pattern of prevailing winds that pushes and pulls on surface waters across the Pacific Ocean.

El Niño is part of the natural climate phenomenon called the El Niño Southern Oscillation (ENSO). It has two opposite states: El Niño and La Niña, both of which significantly alter global weather.

Since 1980 there have been nine El Niño and eight La Niña events; this is regarded as a small sample size from which to draw statistics. ENSO Outlook status: success rate. Verification of the ENSO ...

Editor's Note: This story was updated at 10:00 a.m. E.D.T. on Friday, July 12 to note that the El Niño Southern Oscillation climate cycle, not a specific El Niño event, can be predicted well in ...

El Niño (Spanish for “little boy”) and La Niña (“little girl”) are part of the El Niño-Southern Oscillation (ENSO) cycle, which is the result of variation in ocean temperatures in the ...

The La Niña phenomenon is a phase of the climate cycle known as El Niño-Southern Oscillation (ENSO) with cooling waters in the equatorial Pacific Ocean recorded since the late 19th century ...

These patterns are all tied to the El Niño-Southern Oscillation (ENSO), which is the pattern of prevailing winds that pushes and pulls on surface waters across the Pacific Ocean.

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 next El Niño Southern Oscillation can be predicted more than two years in advance, according to a new study that looked at thousands of years of past climate data. In the contiguous U.S ...