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A 3-D image of the study area of Liu et al. [2022] in Kuuguluk River at Salluit, Nunavik (Quebec), Canada. The image shows the locations of A-A’ and B-B’ and lines C1-5.
Posted inEditors' Highlights

Why is Permafrost Groundwater Surfacing?

by Victor Bense 21 April 202214 April 2022

Hydrogeological properties of degrading permafrost come to fruition with a new 3-D modeling study that highlights the increasing role of groundwater in the water cycle of high-latitude areas.

Experimental design of the calibration and testing experiments performed by Shen et al.
Posted inEditors' Highlights

Hydrologists Should Reconsider How They Calibrate Their Models

by Marc F. P. Bierkens 15 April 202214 April 2022

A new study suggests that the commonly used split sample approach in hydrology, where time series are divided into a part for model calibration and a part for model validation, should be abandoned.

Imagen aérea de un vecindario en Texas inundado. Se observan sólo los techos de las casas y las copas de los árboles.
Posted inNews

Cuando los ríos están contaminados, las inundaciones son solamente el primer problema

by J. Besl 24 March 202224 March 2022

A medida que las inundaciones aumentan en frecuencia e intensidad, los productos químicos enterrados en los sedimentos de los ríos se convierten en “bombas de tiempo” que esperan activarse.

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.

Logjam in the Middle Fork Snoqualmie River located in Washington
Posted inNews

From River to Sea: Estimating Wood Cascades

by Carolyn Wilke 21 January 202221 March 2022

Dams and deforestation have chipped away at the millions of cubic meters of wood that flow through rivers and out to sea.

Under a cloudy sky, numerous blue-tipped sand mining ships dot the green-blue waters of the Mekong River.
Posted inNews

Satellites Spy on Sand Mining in the Mekong

by Alka Tripathy-Lang 21 December 202110 January 2022

Concrete, used in everything from streets to skyscrapers, needs sand, often mined from active rivers in developing countries with little oversight. Researchers can now use satellites to keep watch.

A conceptual model showing how phosphorous from individual household waste is transported to surface waters.
Posted inEditors' Highlights

Water Quality Policy Must Consider Stored Watershed Phosphorous

by D. Scott Mackay 6 December 20213 December 2021

Phosphorous stored in watersheds and affects water quality for decades. A new model predicts phosphorus accumulation and depletion, and the consequences for water quality conservation measures.

Margaritifera laevis shells on the bottom of a river.
Posted inNews

Freshwater Mussel Shells May Retain Record of Alpine Snowpack

by Stacy Kish 4 October 202121 March 2022

A new study explores a possible proxy for seasonal freshwater input that could elucidate changes in alpine snowpack as the planet warms.

A scuba diver records data next to a large pink coral.
Posted inNews

Degraded Coral Reefs May Be More Resistant to Climate Change

by Clara Chaisson 29 September 202121 March 2022

New research on Kiribati’s beleaguered atolls paints a complex picture of reef recovery.

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 202112 April 2022

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

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“Nationwide and Regional PM2.5-Related Air Quality Health Benefits from the Removal of Energy-Related Emissions in the United States”
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