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Grace van Deelen

Grace van Deelen, joined Eos in 2023 as a staff writer. She covers all things Earth science and is particularly interested in stories that highlight the intersection of society, the environment, and equity in science. Grace holds a master’s degree from MIT’s Graduate Program in Science Writing and bachelor’s degrees in biology and anthropology from Tufts University.

A satellite image shows miles-wide blooms of green phytoplankton in the ocean.
Posted inNews

Microbe Preferences Drive Ocean Carbon Pump

by Grace van Deelen 15 October 202415 October 2024

New research offers insight into how certain bacteria degrade organic matter in Earth’s oceans.

An illustration showing the Florida Current, a flow of ocean water between Florida and the Bahamas.
Posted inNews

The Florida Current May Be Slowing Down, but Not by Much

by Grace van Deelen 7 October 202421 November 2024

A needed correction to a widely used data set reduced scientists’ estimates of how ocean circulation has weakened.

A gauge used to measure lake levels stands on a dry, sandy lake bed
Posted inNews

A Fuller Great Salt Lake Would Likely Narrow an Environmental Health Gap

by Grace van Deelen 1 October 202426 February 2026

Pacific Islander and Hispanic residents of Salt Lake City would benefit most from higher lake levels and reduced dust pollution.

Three people wearing orange safety jackets stand on the deck of a ship in the Arctic.
Posted inNews

Swedish Icebreaker Is the First to Dig Into Greenland’s Remote Victoria Fjord

by Grace van Deelen 13 September 202413 September 2024

Data collected aboard Oden will shed light on the dynamics of the Greenland Ice Sheet.

People floating in colorful tubes in the distance down gentle river rapids.
Posted inNews

Labor Day Dips Alter Stream Composition

by Grace van Deelen 30 August 20242 June 2025

Holiday weekend tubing introduces toxic chemicals and shifts microbial communities in a popular Colorado river.

A GPS station in a California desert
Posted inNews

U.S. Earthquake Early Warning System Gets a Major Upgrade

by Grace van Deelen 13 August 202426 February 2026

Satellite capabilities will improve the accuracy of ShakeAlert earthquake magnitude measurements.

Two people sitting in a room talking.
Posted inFeatures

Devon Parfait: Using Earth Science to Support Coastal Residents

by Grace van Deelen 25 July 202426 February 2026

At every step of his career, a coastal resilience expert has worked to protect his community.

A firefighter walks toward a fire in a field.
Posted inENGAGE, News

Is It Climate Change? Americans Mostly Say Yes

by Grace van Deelen 18 June 202418 June 2024

Most Americans think climate change plays some role in creating extreme weather, though their perceptions didn’t always align with scientists’.

A flooded airport runway on a cloudy day.
Posted inNews

More than a Third of Coastal Alaska Structures May Be at Risk of Flooding by 2100

by Grace van Deelen 12 June 202412 June 2024

A new analysis of flood exposure shows many residential buildings at risk as sea levels rise.

Smokestacks emit clouds of gas at sunset.
Posted inNews

Toxic Ethylene Oxide May Exceed Safe Levels in Cancer Alley

by Grace van Deelen 11 June 202411 June 2024

Concentrations of the cancer-causing chemical far surpass EPA threshold levels for safety in southeastern Louisiana.

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