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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 visualization of black carbon around the globe.
Posted inResearch Spotlights

Previous Research Has Underestimated Black Carbon Emissions

by Terri Cook 30 April 201919 October 2021

New observational constraints suggest that U.S. emissions of this heat-absorbing aerosol were 80% higher during the late 20th century than prior estimates have indicated.

Phytoplankton bloom over the study area in the South Pacific Ocean
Posted inResearch Spotlights

Southern Hemisphere Sediments Show Surprising Pliocene Cyclicity

by Terri Cook 25 April 201926 January 2023

New, high-resolution paleoclimate reconstructions with 100,000-year rhythms may offer insights into how Earth’s climate system operated during a time when the planet was warmer than it is today.

Thóra Árnadóttir setting up GPS instrument in Iceland
Posted inResearch Spotlights

A New Way of Visualizing Iceland’s Crustal Deformation

by Terri Cook 24 April 20196 October 2021

A novel method of calculating strain rates from GPS data shows the South Iceland Seismic Zone is experiencing rapid deformation, including inflation near the island’s most active volcano.

The Miracle Pine Tree in Tohoku, Japan
Posted inResearch Spotlights

All Types of Large Earthquakes Produce Prompt Gravity Signals

by Terri Cook 23 April 20196 October 2021

New observations of recently discovered gravity perturbations that precede seismic waves have the potential to improve earthquake early-warning systems in California and other tectonic settings.

The Glomar Challenger deep-sea drilling vessel
Posted inResearch Spotlights

Late Cretaceous Extreme Warmth at High Southern Latitudes

by Terri Cook 22 April 2019

New proxy data indicate sea surface temperatures at high southern latitudes reached over 35°C during a period of extreme greenhouse climate that began about 100 million years ago.

Scientists collect water samples in Antarctica.
Posted inResearch Spotlights

Antarctica’s Seasonal Streams Contribute Iron to the Ross Sea

by Terri Cook 22 April 201925 August 2022

Analysis of nutrient concentrations in four streams that discharge to the Southern Ocean indicates they are important sources of iron and phosphorous for coastal phytoplankton communities.

The Bayside Picnic Area in Queens, New York after Hurricane Sandy in 2012
Posted inResearch Spotlights

Meeting User Requirements for Sea Level Rise Information

by Terri Cook 19 April 201924 February 2023

A new framework based on decision analysis can help scientists produce practical data that support informed decisions about climate adaptations.

The western Pacific Ocean
Posted inResearch Spotlights

Numerical Models Overestimate Near-Inertial Wind Power Input

by Terri Cook 19 April 201910 March 2022

The first study to estimate the global wind power on internal gravity waves based solely on observations offers a new benchmark for comparing future calculations.

A flooded neighborhood in San Diego, California.
Posted inResearch Spotlights

If Precipitation Extremes Are Increasing, Why Aren’t Floods?

by Terri Cook 17 April 201915 February 2023

Improving our understanding of the relationship between changes in precipitation and flooding due to rising temperature is a new grand challenge for the scientific community, argue the authors of a recent commentary.

Martian Polar Layered Deposits
Posted inResearch Spotlights

How Do Intergranular Particles Affect the Flow of Ice?

by Terri Cook 15 April 20198 August 2022

Laboratory experiments that indicate rock particles can impede sliding along grain boundaries in ice may help researchers more accurately determine the composition of planetary ice masses.

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