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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.

A view of the aurora-like phenomenon dubbed STEVE
Posted inResearch Spotlights

Probing the Origin of a New Celestial Phenomenon

by Terri Cook 15 March 201921 February 2023

The first statistical study of STEVE events suggests that the appearance of these narrow ribbons of light is closely correlated with violent disturbances in Earth’s magnetosphere.

Perspective view of Mars’s south polar ice cap
Posted inResearch Spotlights

Local Heat Source Needed to Form Liquid Water Lake on Mars

by Terri Cook 12 March 201910 March 2022

Thermal modeling suggests that active magmatism in the past few hundred thousand years could account for the presence of a large lake previously hypothesized beneath the Red Planet’s southern ice cap.

The rough Cullinan Diamond
Posted inResearch Spotlights

Explaining the Genesis of Superdeep Diamonds

by Terri Cook 12 March 201923 December 2021

Real-time tracking during diamond anvil cell experiments indicates reaction rates may control the unusual depth distribution of the extremely rare diamonds that form deep within Earth’s mantle.

A woman walks past debris from a building damaged by an earthquake in Oklahoma
Posted inResearch Spotlights

Forecasting Seismicity from Wastewater Disposal in Oklahoma

by Terri Cook 8 March 20195 December 2022

Mandated wastewater injection reductions in effect since 2016 are inadequate for preventing future, large-magnitude earthquakes in the state, according to a new induced seismicity model.

Grocery store carts full of bottled water
Posted inResearch Spotlights

What Do People Drink When They Think Their Tap Water Isn’t Safe?

by Terri Cook 6 March 201918 October 2022

An analysis of nationwide housing data shows that minority households disproportionately bear the multibillion-dollar economic burden that comes from believing their water is unsafe.

A view of cloud convection over the South Pacific
Posted inResearch Spotlights

Improving Estimates of Long-Term Climate Sensitivity

by Terri Cook 5 March 201928 February 2023

New modeling casts doubt on the suitability of running experiments with fixed sea surface temperatures to understand the effects of cloud aggregation on Earth’s climate.

A view of the Larsen C ice shelf in Antarctica
Posted inResearch Spotlights

Extending the Record of Surface Melt on the Larsen C Ice Shelf

by Terri Cook 25 February 201928 July 2022

The first use of Advanced Scatterometer radar data to determine melt duration on an Antarctic ice shelf shows the season has decreased by up to 2 days per year during the extended 21st century record.

An airplane carries instruments to detect high-frequency waves in the Ross ice shelf.
Posted inResearch Spotlights

Humming Ice Shelf Changes Its Seismic Tune with the Weather

by Terri Cook 22 February 201928 July 2022

Seismic waves resonating within the upper layers of the Ross ice shelf could help scientists monitor the Antarctic melt season and understand factors that could lead to sudden ice shelf collapse.

A cartoon of a scientist imagining the complexities of Earth system models
Posted inResearch Spotlights

Reframing Sensitivity Analysis in Earth System Models

by Terri Cook 21 February 201913 October 2021

According to a new study, the performance metric–based methods currently used to evaluate dynamical model sensitivity are based upon faulty reasoning and need to be reenvisioned.

A view of the asteroid Eros
Posted inResearch Spotlights

How Long Can Celestial Bodies Retain Ice?

by Terri Cook 20 February 201914 January 2022

A new model suggests that many objects in the outer asteroid belt may still harbor deposits that formed around the time of their accretion.

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Features from AGU Publications

Research Spotlights

More Bubbles Means More Variation in Ocean Carbon Storage

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Editors' Highlights

The Power of Naming Space Weather Events

10 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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