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Terri Cook

Terri Cook is an award-winning freelance writer whose career has focused on exploring and explaining the 4.5-billion-year-history of the remarkable planet we live on. Cook, who has an M.S. degree in Earth science from the University of California, Santa Cruz, writes about geology, ecology, and the environment—as well as wine, tea, hiking, and biking—for a diverse group of publications, including Eos, Scientific American, NOVA Next, Science News, and EARTH magazine, as well as Avalon Travel and numerous other travel-related publications. Her reporting has taken her to 25 states and 20 countries scattered across 5 continents, from the depths of the Grand Canyon to the sandy Australian Outback to the mist-shrouded summit of Bali’s Mount Batur. As the coauthor of three popular guidebooks, including Hiking the Grand Canyon’s Geology and Geology Underfoot Along Colorado’s Front Range, Cook gives frequent presentations about geology and science communication. She is the recipient of a 2016 European Geosciences Union Science Journalism Fellowship and is based in beautiful Boulder, Colo.

The Duvannyi Yar thaw site on the Kolyma River in Siberia
Posted inResearch Spotlights

Minimal Evidence of Permafrost Carbon in Siberia’s Kolyma River

by Terri Cook 20 September 202120 September 2023

New research finds that Arctic rivers currently transport limited permafrost-derived dissolved organic carbon, which has implications for understanding the region’s changing carbon cycle—and its potential to accelerate climate change.

Map of sites in USDA’s Long-Term Agroecosystem Research network
Posted inResearch Spotlights

Big Benefits from Experimental Watersheds

by Terri Cook 18 February 202124 February 2023

Scientific insights from the Agricultural Research Service’s long-term study sites underpin dozens of models and research methods that guide global land management and conservation practices.

Smoke billows from a wildfire in the Rocky Mountains
Posted inResearch Spotlights

Evaluating Environmental Predictors of Western U.S. Wildfires

by Terri Cook 10 February 202115 October 2021

A new analysis highlights the importance of carefully selecting the environmental variables used to drive future changes in wildfire burn area in climate models.

Tucson, Arizona, with the Santa Catalina Mountains in the background
Posted inResearch Spotlights

Parsing Routes to Aquifer Recharge Along Mountain Fronts

by Terri Cook 8 February 202130 March 2023

Research from the Tucson Basin indicates that tracers can be used to distinguish surface and subsurface recharge, providing crucial data to support sustainable water management in arid environments.

View toward the sky from beneath Oregon white oak trees
Posted inResearch Spotlights

How Some Trees Survive the Summer Dry Season

by Terri Cook 3 December 20203 December 2021

Oak trees in California seasonally tap moisture in unsaturated soil and weathered bedrock, even when the groundwater table is within reach of their roots.

A yellow submarine glider floats on the ocean surface.
Posted inResearch Spotlights

Autonomous Minisubmarine Measures Seawater Conditions

by Terri Cook 23 November 202027 September 2022

Forecasts of carbonate chemistry in coastal ecosystems determined from seasonal robotic measurements can improve fisheries management and help mitigate short-term ocean acidification events.

Aerial view of the Green Mountain Reservoir and Heeney, Colo., in 2017
Posted inResearch Spotlights

Different Models, Different Answers in Water Resource Planning

by Terri Cook 19 November 202024 February 2023

The experimental design used in climate vulnerability assessments can strongly influence the assessments’ findings and skew decisions about which factors are most important for informing adaptation.

A large swirling plankton bloom is seen in the Gulf of Alaska in this satellite image taken in June 2016
Posted inResearch Spotlights

A Promising Development for Detecting Ocean Productivity

by Terri Cook 3 November 202027 September 2022

A comparison of primary productivity measurements across the North Pacific Ocean demonstrates the potential for using autonomous instruments to discern effects of climate change on the marine food web.

Cumuliform clouds hover over the Atlantic Ocean
Posted inResearch Spotlights

A New Way to Fingerprint Drivers of Water Cycle Change

by Terri Cook 15 October 202020 July 2022

Simulations of tropical ocean convection help distinguish climate effects resulting from large-scale changes in atmospheric circulation from those resulting from higher temperatures.

Sediment swirls and mixes with water in a brown slurry
Posted inResearch Spotlights

Experimenting with Underwater Sediment Slides

by Terri Cook 8 October 202014 March 2024

Sediment-laden currents caused by breaching flow slides are hazardous to flood defenses and seabed infrastructure. New research shows that these phenomena must be accounted for in erosion simulations.

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Features from AGU Publications

Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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