Researchers investigated concentrations of clumped methane isotopes to learn more about how levels of the potent greenhouse gas have changed over the industrial era.
geochemistry
Posted inEditors' Highlights
Fluid-Driven Reactions Restore Fault Strength Between Earthquakes
In fault gouge, fluids drive chemical healing by cementing grains, a mechanism for seismic slip in rocks frictionally expected to creep. This cohesion matters for fault stability.
Posted inResearch Spotlights
Carbon-Rich Rocks May Have Cooled the Ancient Martian Atmosphere
Data from the Perseverance rover indicate abundant carbonates in Jezero Crater, a finding with implications for Mars’s climatic history.
Posted inNews
Mongolian Mountains Rose When the Crust Bounced Back
A plate folded, the lithosphere sank, and up popped a mountain range.
Posted inResearch Spotlights
Where Was Baltica 616 Million Years Ago?
Disentangling magnetic signals in its ancient rocks gives an updated view of the paleocontinent’s position during the Ediacaran period.
Posted inAGU News
The Persistence of PFAS
Researchers around the world are seeking to search and destroy pervasive “forever chemicals.”
Posted inFeatures
Chemical Companies Are Churning Out New PFAS. Where in the World Are They Ending Up?
Bans on older versions of “forever chemicals” seem to be working. But emerging variants behave in ways that scientists are only beginning to pin down.
Posted inNews
A Peculiar Polymer Paired with Sunlight Could Remove PFAS
A new photocatalyst might help take the “forever” out of “forever chemicals” present in water.
Posted inNews
Engineering a Cleaner Way to Extract Lithium
The new chemical solvent technique could cut water use, speed extraction, and unlock reserves like California’s Salton Sea.