Southeastern Arizona’s “Copper Triangle” is a hot spot for high-grade deposits, thanks to ancient magmatic activity.
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.
Posted inNews
Microbe Preferences Drive Ocean Carbon Pump
New research offers insight into how certain bacteria degrade organic matter in Earth’s oceans.
Posted inNews
The Florida Current May Be Slowing Down, but Not by Much
A needed correction to a widely used data set reduced scientists’ estimates of how ocean circulation has weakened.
Posted inNews
A Fuller Great Salt Lake Would Likely Narrow an Environmental Health Gap
Pacific Islander and Hispanic residents of Salt Lake City would benefit most from higher lake levels and reduced dust pollution.
Posted inNews
Swedish Icebreaker Is the First to Dig Into Greenland’s Remote Victoria Fjord
Data collected aboard Oden will shed light on the dynamics of the Greenland Ice Sheet.
Posted inNews
Labor Day Dips Alter Stream Composition
Holiday weekend tubing introduces toxic chemicals and shifts microbial communities in a popular Colorado river.
Posted inNews
U.S. Earthquake Early Warning System Gets a Major Upgrade
Satellite capabilities will improve the accuracy of ShakeAlert earthquake magnitude measurements.
Posted inFeatures
Devon Parfait: Using Earth Science to Support Coastal Residents
At every step of his career, a coastal resilience expert has worked to protect his community.
Posted inENGAGE, News
Is It Climate Change? Americans Mostly Say Yes
Most Americans think climate change plays some role in creating extreme weather, though their perceptions didn’t always align with scientists’.
Posted inNews
More than a Third of Coastal Alaska Structures May Be at Risk of Flooding by 2100
A new analysis of flood exposure shows many residential buildings at risk as sea levels rise.