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El Niño-Southern Oscillation (ENSO)

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 201810 April 2023

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.

A new study examines how El Niño impacted fish populations off the coast of Mexico.
Posted inResearch Spotlights

How "Godzilla" El Niño Affected Tropical Fish in Low-Oxygen Zone

by E. Underwood 13 April 201718 March 2022

A warm period unexpectedly boosted some species of fish larvae off the coast of Mexico.

Environmental data buoy at Granite Island Light Station, a Great Lakes Evaporation Network site on Lake Superior.
Posted inScience Updates

Predicting a Great Lake's Response to a Warm Winter

by J. D. Lenters, P. D. Blanken and B. Kerkez 11 November 201618 August 2025

The Superior Challenge Summit: Forecasting El Niño's Impact on the World's Largest Lake; Ann Arbor, Michigan, 17–19 May 2016

Low water levels in Uvas Reservoir in California, March 2014.
Posted inNews

U.S. Winter Outlook Sees No Drought Relief

by S. Lemonick 24 October 20166 February 2023

A weak La Niña is expected to further dry out southwestern and Gulf Coast states.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

Comparing Machine Learning Models of Raindrop Formation

8 July 20268 July 2026
Editors' Highlights

A Satellite-Based Global Carbon Flux Product is Sensitive to Droughts 

8 July 20266 July 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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