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El Niño-Southern Oscillation (ENSO)

Posted inEditors' Highlights

What American Samoan Corals Tell About El Niño’s History

by E. Thomas 26 November 201830 March 2023

Samoan corals record how patterns of warm/cool and more/less salty in the equatorial Pacific changed in space and time over the last 500 years.

Posted inEditors' Highlights

The Long Reach of El Niño’s Broom

by J. A. Thornton 4 April 201813 February 2023

Both the El Niño Southern Oscillation and natural variations in tropical Pacific weather conditions impact surface air quality in the Eastern United States.

Posted inEditors' Vox

Diversity of El Niño Variability Makes Prediction Challenging

by S.-W. Yeh 26 March 20188 March 2022

The atmospheric response to El Niño, both in the Pacific region and around the world, changes with each event and is uncertain in future under the influence greenhouse gas forcing.

Global temperature map for 2017
Posted inNews

Global Average Temperatures in 2017 Continued Upward Trend

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 19 January 20188 September 2026

Even when the warming from El Niño is removed, 2017 ranks among the hottest years on record.

Posted inEditors' Vox

Learning from an Extreme El Niño

by A. Santoso 10 January 201814 January 2022

A recent paper in Reviews of Geophysics describes new scientific insights on the El Niño-Southern Oscillation from analysis of the 2015-2016 extreme El Niño.

Posted inEditors' Highlights

Is Global Warming Suppressing Canonical El Niño?

by Kristopher B. Karnauskas 16 November 201714 February 2023

A study explores the relationship between diverse El Niño events and the background state of the tropical Pacific.

Hurricane Maria bears down on Dominica
Posted inNews

Unprecedented Hurricane Season Sees Widespread Damage

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 22 September 201726 October 2022

This hurricane season has broken multiple records already.

Researchers unravel how a warming climate impacts El Niño behavior
Posted inResearch Spotlights

Improving Our Understanding of El Niño in a Warm Climate

by Jenny Lunn 17 August 201726 January 2023

A new study seeks to bring together the strongest features of proxy data and climate models to reduce uncertainties in reconstructions of past El Niño behavior.

Tropical storm Arlene
Posted inNews

Scientists Predict Active Hurricane Season

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 26 May 201712 December 2022

A combination of warm sea surface temperatures and a weak or absent El Niño may create conditions conducive to tropical storm formation.

Aerosol concentrations in different regions of eastern China are impacted differently by El Niña.
Posted inResearch Spotlights

La Niña Subtype May Have a Big Impact on Aerosols in China

Sarah Stanley, Science Writer by Sarah Stanley 19 April 201713 February 2023

During a newly identified "flavor" of La Niña called La Niña Modoki, aerosol concentrations over different regions of eastern China may depend heavily on the strength of the event.

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3 September 20263 September 2026
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