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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.

Two people on the deck of a large ship look over the edge of the ship at large chunks of floating ice.
Posted inResearch & Developments

Arctic Winter Sea Ice Hits a Record Low, Again

by Grace van Deelen 27 March 202627 March 2026

Sea ice in the Arctic has likely hit its maximum extent for the year, the National Snow and Ice Data Center (NSIDC) said on 26 March. That maximum extent is one of the lowest ever recorded, tying last year’s record for the least sea ice coverage in the 48-year observational record.

A gray, speckled rock sits on a metal plate. Above the rock is a sign showing the numerical label of the rock sample, 7225500.
Posted inNews

Apollo Samples Told a Conflicting Story About Lunar Magnetism, Until Now

by Grace van Deelen 19 March 202619 March 2026

Observations suggested the Moon had both a weak and strong magnetic field in the distant past. A new study presents a theory accommodating all the evidence.

An aerial photo shows a green landscape with a large rock formation in the distance at sunset.
Posted inNews

These Underprotected Brazilian Wetlands Store Carbon with Staggering Density

by Grace van Deelen 12 March 202612 March 2026

The Cerrado, largely overlooked in climate science and policy, is a critical carbon sink, according to new research.

A crowd gathers in front of a gazebo at a rally. Signs held by rally-goers read “Vote for science, vaccines save lives” and “Science works.”
Posted inNews

Thousands Rally to Support the Need for Science in a Democracy

by Grace van Deelen 7 March 20267 March 2026

Dozens of Stand Up for Science gatherings nationwide focused on the importance of science for federal policymaking.

A satellite image shows the edge of an Antarctic ice sheet meeting a frozen ocean.
Posted inResearch & Developments

Antarctic Ice Sheet Has Lost a Connecticut-Sized Amount of Ice Over the Past 30 Years

by Grace van Deelen 2 March 20262 March 2026

A new study of Antarctica has found that since 1996, its ice sheet has lost 12,820 square kilometers (nearly 5,000 square miles) of ice—nearly enough to cover the state of Connecticut, or 10 cities the size of Greater Los Angeles.

Posted inResearch & Developments

After Restructuring, NSF Wants to Hire More Staff but Reduce Solicitations

by Grace van Deelen 26 February 202626 February 2026

After large reductions in staffing last year, the National Science Foundation (NSF) is now seeking to hire more employees.

A half-underwater image shows the leaves (above the water) and roots (underwater) of mangrove plants.
Posted inNews

With the Ocean Included, the Social Cost of Carbon Doubles

by Grace van Deelen 25 February 202625 February 2026

A new calculation includes ocean ecosystems when assessing the monetary impact of climate change.

Seven people pose for a photo on an icy field with a mountain in the background on a sunny day. The man in the middle gives a thumbs-up.
Posted inNews

These South Pole Seismometers Will Detect Vibrations 1.5 Miles Under the Ice

by Grace van Deelen 23 February 202623 February 2026

The instruments will freeze into Antarctica’s ice sheet, where they will collect detailed, global-scale seismic data.

Posted inResearch & Developments

Power Plants Will Be Allowed to Release More Than Twice As Much Mercury Into the Air

by Grace van Deelen 20 February 202620 February 2026

At a 20 February event in Kentucky, the Trump administration announced plans to loosen pollution restrictions for coal-burning power plants, including limits on emissions of mercury, a hazardous neurotoxin.

The setting Sun over a mountainous landscape colors the sky in shades of orange.
Posted inNews

Earth’s Climate May Go from Greenhouse to Hothouse

by Grace van Deelen 11 February 202611 February 2026

Uncertainty in climate models could mean Earth systems are perilously close to their tipping points, scientists warn.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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