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Great Lakes

Chicago, Ill., along the shore of Lake Michigan
Posted inNews

Lake Michigan’s Salinity Is on the Rise

by Robin Donovan 7 February 202228 March 2022

Road salt is primarily to blame for the shift, though the water remains within safe levels for now.

Ice breakup along the southwestern shores of Illinois Beach State Park on Lake Michigan
Posted inNews

Drones and Crowdsourced Science Aid Great Lakes Data Collection

by Iris Crawford 17 December 202111 January 2022

Important data collection can aid coastal monitoring and management.

A satellite image of a bright green algae bloom in the dark blue waters of Lake Erie
Posted inResearch Spotlights

Cyanobacteria Blooms Exceed WHO Thresholds in Midwest Lakes

by Rebecca Dzombak 16 November 20216 June 2022

A study of 369 lakes across the Midwest finds that many of them, especially those close to agriculture, have high concentrations of harmful algal bloom-causing cyanobacteria.

Un buzo se acerca a roca cubierta con tapetes multicolores de bacterias.
Posted inNews

Días más largos probablemente incrementaron el oxígeno temprano de la Tierra

by Damond Benningfield 1 October 20218 April 2022

Tapetes microbianos en el sumidero del Lago Huron, combinado con modelado, sugiere que el cambio en duración del día de la Tierra podría haber jugado un rol principal en la oxigenación de la atmósfera.

Image of Sean de Guzman of the California Department of Water Resources conducting a snow survey in the Sierra Nevada.
Posted inFeatures

The Changing Climate’s Snowball Effect

by Korena Di Roma Howley 24 September 202123 March 2023

Shrinking snowpack, thawing permafrost, and shifting precipitation patterns have widespread consequences. Can new technologies—and public policies—help communities adapt?

A diver approaches rocks covered with multicolored mats of bacteria.
Posted inNews

Longer Days Likely Boosted Earth’s Early Oxygen

by Damond Benningfield 3 September 202117 November 2021

Microbial mats in a Lake Huron sinkhole, combined with modeling work, suggest that the changing length of Earth’s day could have played a key role in oxygenating the atmosphere.

An aerial view of green algae mats near the western shore of Lake Erie
Posted inNews

Lake Erie Sediments: All Dredged Up with Nowhere to Grow

by J. Besl 31 August 202128 March 2022

Agriculture is a key contributor to the algae mats that plague Lake Erie. With so many fertilizers entering the lake, could sediment from the lake floor be used to grow crops instead?

Meteotsunami in Ludington, Mich., on 13 April 2018
Posted inNews

Scientists Hope Atmospheric Modeling Can Predict Meteotsunamis

by Tim Hornyak 24 May 202117 May 2022

The first extensively documented air pressure–driven meteotsunami on one of the Great Lakes presents an opportunity to use existing weather models to predict when these potentially deadly waves will strike.

A springtime satellite view of the five Great Lakes shows the snowline roughly following the U.S.–Canadian border.
Posted inNews

Long Live the Laurentian Great Lakes

by Mary Caperton Morton 18 May 202029 September 2021

Living in Geologic Time: Billion-year-old rifting events set the stage for Earth’s greatest lakes.

Graph showing range of water levels in the Great Lakes and the potential benefit from risk management strategies including insurance and dredging
Posted inEditors' Highlights

New Analysis Helps Manage Risks to Shipping in the Great Lakes

by Jim Hall 11 May 202018 October 2022

Modeling of mysteriously fluctuating water levels in the Great Lakes has helped to optimize the prices of shipping insurance contracts along with investments in dredging navigation channels.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Earth’s Future
“How to Build a Climate-Resilient Water Supply”
By Rachel Fritts

EDITORS' HIGHLIGHTS
AGU Advances
“How Do Atmospheric Rivers Respond to Extratropical Variability?”
By Sarah Kang

EDITORS' VOX
Reviews of Geophysics
“Rare and Revealing: Radiocarbon in Service of Paleoceanography”
By Luke C. Skinner and Edouard Bard

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