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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.

Eddies in the Southern Hemisphere jet stream
Posted inResearch Spotlights

Estimating the Likelihood of Future Temperature Extremes

by Terri Cook 14 February 201912 January 2022

A prototype model allows scientists to investigate how wind eddies and other atmospheric phenomena may affect the prevalence of heat waves and cold snaps in the Southern Hemisphere.

A researcher collects a rock sample for dating
Posted inResearch Spotlights

More Evidence Humans Migrated to the Americas via Coastal Route

by Terri Cook 7 February 201928 October 2022

A new chronology shows that ice-free areas existed along the British Columbia coast earlier than previously thought.

The view near McMurdo Station, Antarctica
Posted inResearch Spotlights

Observations Show Gravity Waves Above Antarctica Dance in Winter

by Terri Cook 5 February 20198 March 2022

Year-round observations show gravity waves above Antarctica exhibit seasonal patterns that peak in winter, which could help researchers trace the source of this mysterious phenomenon.

An artist’s rendition of the NASA satellites that observe Earth’s magnetosphere
Posted inResearch Spotlights

New Plasma Wave Observations from Earth’s Magnetosphere

by Terri Cook 28 January 201913 October 2022

The first simultaneous observations of multiple electromagnetic wave types in Earth’s magnetosphere may inaugurate a new field of inquiry into cross-frequency wave interactions.

A scientist installs GPS equipment to monitor earthquakes.
Posted inResearch Spotlights

Ancient Faults Amplify Intraplate Earthquakes

by Terri Cook 23 January 20194 October 2022

A comparison of deformation rates from Canada’s Saint Lawrence Valley offers compelling evidence that strain in the region is concentrated along ancient structures from previous tectonic cycles.

The Yaeyama Islands in Okinawa, Japan
Posted inResearch Spotlights

Unraveling the Origin of Slow Earthquakes

by Terri Cook 22 January 20195 October 2022

Different nucleation styles detected in five slow-slip events in the same area of Japan’s Ryukyu subduction zone suggest the physical properties along this tectonic plate interface change over time.

A rock sequence formed by deep-sea turbidity currents
Posted inResearch Spotlights

How Do Turbidity Currents Accelerate?

by Terri Cook 7 January 201914 March 2024

Flume experiments show that a self-reinforcing cycle can strengthen the currents responsible for transporting large amounts of sediment to the deep oceans.

A view of the Scottish Highlands, where a geologist first recognized Barrovian geological regional metamorphism.
Posted inResearch Spotlights

Regional Metamorphism Occurs Before Continents Collide

by Terri Cook 3 January 201911 January 2022

Evidence from collision zones suggests that the high temperatures that create regional zones of metamorphic minerals occur in wide, hot back arcs prior to continental collision deformation.

An aerial view of the massive Katla glacier, which might be a bigger source of CO2 than previously estimated
Posted inResearch Spotlights

Volcano in Iceland Is One of the Largest Sources of Volcanic CO2

by Terri Cook 8 November 201815 November 2022

High-precision airborne measurements, in combination with atmospheric modeling, suggest that the Katla subglacial caldera may be one of the planet’s biggest sources of volcanic carbon dioxide.

The flat Australian outback overlies a series of ancient mountain chains.
Posted inResearch Spotlights

Unraveling the Origins of Australia’s Ancient Mountain Chains

by Terri Cook 5 November 201813 October 2022

New data synthesis suggests that varying rates of trench retreat along the margin of the Gondwana supercontinent were responsible for the curvature of the Tasmanide mountain chains.

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14 August 202514 August 2025
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Early-Career Book Publishing: Growing Roots as Scholars

6 August 202530 July 2025
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