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Related Experiment Video

Updated: Nov 20, 2025

Thermal Limits Determination for Zooplankton Using a Heat Block

Thermal Limits Determination for Zooplankton Using a Heat Block

Published on: November 18, 2022

Lake heatwaves under climate change.

R Iestyn Woolway^1,2, Eleanor Jennings³, Tom Shatwell⁴

¹Centre for Freshwater and Environmental Studies, Dundalk Institute of Technology, Dundalk, Ireland. riwoolway@gmail.com.

|January 21, 2021

Summary

This summary is machine-generated.

Lake heatwaves, periods of extreme warm surface water, will intensify and lengthen globally due to climate change. This poses significant risks to lake biodiversity and ecosystem services.

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Published on: March 31, 2023

Area of Science:

Environmental Science
Climate Science
Limnology

Background:

Lake ecosystems are vulnerable to temperature changes and thermal extremes.
Little is known about lake heatwaves and their future under global warming.

Purpose of the Study:

Investigate changes in lake heatwaves globally from 1901 to 2099.
Project future lake heatwave intensity and duration under different emission scenarios.

Main Methods:

Utilized satellite observations and a numerical model.
Analyzed hundreds of lakes worldwide.

Main Results:

Lake heatwaves projected to become significantly hotter and longer by 2100.
Under Representative Concentration Pathway (RCP) 8.5, intensity increases to 5.4°C and duration to 95.5 days.
Under RCP 2.6, intensity increases to 4.0°C and duration to 27.0 days.
Deeper lakes experience longer-lasting but less intense heatwaves.

Conclusions:

Lake heatwaves will exacerbate warming effects, impacting lake physical and chemical properties.
Increased heatwave duration may lead to permanent heatwave states in some lakes.
Threatens aquatic biodiversity, ecosystem resilience, and vital societal benefits provided by lakes.