A global study of lavas from volcanic hot spots suggests that contrary to accepted wisdom, Earth’s deep mantle may have the same composition throughout. Not everyone is convinced, however.
Earth science
Posted inNews
Rainfall Makes the Ocean a Greater Carbon Sink
Rain has so far been ignored in calculations of the ocean’s capacity to take up carbon, but a new estimate shows it enhances the ocean sink by 5%–7%.
Posted inResearch Spotlights
Mapping Landslide Risk in the United States and Puerto Rico
A new method provides highly accurate continental-scale landslide susceptibility maps that are being used in the aftermath of Hurricane Helene.
Posted inResearch Spotlights
Insights Biogeoquímicos de um Importante Rio Amazônico
Sub-representados nos orçamentos globais de carbono, rios tropicais como o Tocantins, no Brasil, necessitam de estudos para estabelecer suas características de base face às crescentes mudanças globais.
Posted inResearch Spotlights
Down in the Slumps: Tracing Erosion Cycles in Arctic Permafrost
Climate change is altering permafrost thaw cycles and leading to unique Arctic erosional problems.
Posted inScience Updates
A Cloud-Based Solution to a Radar Data Deluge
An open-science tool built to support NASA missions is making synthetic aperture radar, once the domain only of subject matter experts, more accessible for nonspecialists and real-world applications.
Posted inNews
A Close Asteroid Encounter May Have Once Given Earth a Ring
An unusual concentration of impact craters suggests that they may have been caused by the breakup of an asteroid that created a temporary debris ring around Earth.
Posted inNews
Many of the World’s Cities Have Gotten Wetter
Dense populations, aerosols, and cities’ tendency to raise temperatures contribute to higher levels of precipitation in urban areas than surrounding rural areas.
Posted inENGAGE, News
Here’s Why Resolution Copper Wants to Mine Oak Flat
Southeastern Arizona’s “Copper Triangle” is a hot spot for high-grade deposits, thanks to ancient magmatic activity.
Posted inResearch Spotlights
Each Glacier Has a Unique Organic Matter Composition
Like snowflakes, no two glaciers are alike: Carbon-containing compounds released from glaciers vary from place to place, meaning climate and ecosystem effects of melting could vary as well.