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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 sitting in a car point at an electronic tablet that depicts a map.
Posted inNews

Amid the Arctic’s Hottest Year, Arctic Science Faces a Data Deficiency

by Grace van Deelen 16 December 202516 December 2025

The 20th annual Arctic Report Card reveals new highs in temperature and new lows in sea ice, as well as an uncertain outlook for the availability of federal data.

A close-up image shows a hand holding a gas pump that is releasing gas into a white car.
Posted inResearch & Developments

Trump Proposes Weakening Fuel Economy Rules for Vehicles

by Grace van Deelen 3 December 20253 December 2025

At the White House today, President Donald Trump announced his administration would “reset” vehicle fuel economy standards. Trump said the administration plans to revoke tightened standards, also known as Corporate Average Fuel Economy (CAFE) standards, set by President Joe Biden in 2024.

Smokestacks at an industrial facility release gases into the air under a cloudy sky.
Posted inResearch & Developments

EPA to Abandon Stricter PM2.5 Air Pollution Limits

by Grace van Deelen 26 November 202526 November 2025

The U.S. Environmental Protection Agency moved this week to reduce limits on fine particulate air pollution, including soot, set by the Biden administration last year. 

A large, anvil-shaped cloud
Posted inNews

Some Summer Storms Spit Sooty Particles into the Stratosphere

by Grace van Deelen 26 November 202526 November 2025

Earth’s typically pristine stratosphere is filling with particles from wildfires and additional moisture due to strong convective storms.

A street sign halfway submerged in floodwaters.
Posted inResearch & Developments

5,500 Toxic Sites in the U.S. at Risk of Flooding as Seas Rise

by Grace van Deelen 20 November 202526 November 2025

Rising sea levels have put thousands of facilities containing hazardous materials at risk of flooding this century, according to a new study published in Nature Communications. 

A banner with leaves and flowers and the text "COP30 BRASIL AMAZONIA BELÉM 2025."
Posted inResearch & Developments

Global Methane Emissions Projected to Fall, According to United Nations Report

by Grace van Deelen 17 November 202517 November 2025

The world has made significant progress on methane mitigation since 2020, though meeting the goals of a major international pledge will require additional action, according to a United Nations Environment Programme (UNEP) report.

Five expedition team members climb an icy surface.
Posted inNews

Pamir Glacier Expedition Returns with High-Elevation Ice Cores

by Grace van Deelen 17 November 202526 February 2026

The three glacial cores will unlock mysteries about past climate and weather patterns in central Asia.

An image of Earth from the International Space Station shows clouds floating over the ocean, with the darkness of space in the background.
Posted inNews

Earth System Engineers Take Planetary Alterations to Extreme Scales

by Grace van Deelen 29 October 202529 October 2025

A new framework argues Earth scientists should employ the concept of ecosystem engineering across geologic time and space.

An image shows green terraces and ponds at a farm on a hill.
Posted inResearch & Developments

Developing Nations Need 12 Times More Financing to Meet Climate Adaptation Needs

by Grace van Deelen 29 October 202529 October 2025

An annual United Nations report, published 29 October, reveals a “yawning gap” between existing and necessary climate adaptation finance, a gap “putting lives, livelihoods, and entire economies at risk.”

Two men install a weather station mounted on a tall metal pole.
Posted inFeatures

Building Better Weather Networks

by Grace van Deelen 27 October 202526 February 2026

A lack of weather data often leaves African communities vulnerable. Convergent efforts to improve observational networks throughout the continent are slowly filling the gaps.

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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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