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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.

Researchers examine unusual ground motion associated with the deepest major earthquake in the seismological record.
Posted inResearch Spotlights

The Curious Case of the Ultradeep 2015 Ogasawara Earthquake

by Terri Cook 28 December 20172 March 2022

Unusual ground motion associated with the deepest major earthquake in the seismological record is due to both its great depth and its origin away from the subducting slab.

Secondary electron microscope images showing microstructures of stressed grains.
Posted inResearch Spotlights

Probing the Grain-Scale Processes That Drive Plate Tectonics

by Terri Cook 8 December 201722 September 2022

New experimental data suggest that rock composition may play a critical role in forming and perpetuating shear zones.

Researchers use radiometric dating to distinguish the timing of one of Earth’s most pivotal timescale boundaries.
Posted inResearch Spotlights

Resolving a Mystery of the Ages

by Terri Cook 29 November 20174 May 2022

High-precision radiometric dates shed new light on the puzzling 600,000-year disparity in the timing of one of Earth’s most pivotal timescale boundaries.

Researchers look to hydrothermal vents for clues into the movement of Earth’s lower crust
Posted inResearch Spotlights

Is the Lower Crust Convecting Beneath Mid-Ocean Ridges?

by Terri Cook 2 October 201724 March 2023

The first attempt to couple models of hydrothermal circulation and magmatic convection along fast-spreading ridges may explain the spacing of hydrothermal vent fields along the East Pacific Rise.

Researchers use a new technique to better understand alpine snowpacks and track average snow depth and water content
Posted inResearch Spotlights

Cosmic Ray Neutrons Reveal Mountain Snowpacks

by Terri Cook 29 September 201713 March 2023

The first application of aboveground neutron sensing to evaluate alpine snowpacks indicates that this method can reliably detect average snow depth and water content across intermediate distances.

climate change globe arctic
Posted inResearch Spotlights

New Baseline for Understanding Arctic Oxygen and Nutrient Fluxes

by Terri Cook 11 August 201727 September 2022

Significant spatial and temporal patterns emerge from the first pan-Arctic comparison of oxygen demand in marine sediments.

Flux towers, such as this one in a Maryland corn field, provide continuous measurements of evapotranspiration.
Posted inResearch Spotlights

Blending Satellite Data to Monitor Agricultural Water Use

by Terri Cook 8 August 20172 February 2022

A new technique that merges data gathered by multiple satellites can be used to monitor agricultural water use and improve water quality assessments around the globe.

Researchers draft a new model to better simulate deadly pyroclastic flows.
Posted inResearch Spotlights

A Promising New Tool for Forecasting Volcanic Hazards

by Terri Cook 3 August 20175 June 2023

A new model that simulates the behavior of surging ash clouds may help scientists to better predict the hazards associated with the deadliest type of volcanic flows.

Satellite image of land surface in South Asia, observed in August 2004, from the Blue Marble data set.
Posted inResearch Spotlights

The Competing Climate Effects of Elevation and Albedo

by Terri Cook 1 August 20176 July 2022

Variations in surface reflectivity are as important as surface elevation changes in determining regional climate at nonpolar latitudes, according to a new modeling study.

New research suggests North American Arctic waters are neither source nor sink for greenhouse gasses
Posted inResearch Spotlights

A Benchmark for Trace Greenhouse Gases in the Arctic Ocean

by Terri Cook 1 August 201728 March 2023

Samples of seawater from the North American Arctic show that the region is neither a major source nor sink of methane and nitrous oxide to the overlying atmosphere.

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Features from AGU Publications

Research Spotlights

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15 August 202514 August 2025
Editors' Highlights

NASA Mission Creates a New Global Coastal Bathymetry Product

14 August 202514 August 2025
Editors' Vox

Early-Career Book Publishing: Growing Roots as Scholars

6 August 202530 July 2025
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