The type of organic matter, and ratio of nutrients to carbon, impact the ability of heterotrophic bacteria to effectively remove certain forms of nitrogen pollution (nitrate) from streams.
carbon
Posted inEditors' Vox
Erosion: An Overlooked Contributor to the Carbon Cycle
Since physical and chemical erosion yield comparable carbon fluxes, studying both together is essential to avoid biases in erosion-driven carbon flux estimates.
Posted inResearch Spotlights
Alaska’s Lakes and Ponds Reveal Effects of Permafrost Thaw
A new dataset provides a powerful method for easily tracking changes in permafrost.
Posted inResearch Spotlights
Ceres’s Organics Might Not Be Homegrown After All
Scientists have been unable to determine whether the dwarf planet’s organics were produced by its own chemical processes or delivered by asteroids. New evidence implicates asteroids.
Posted inEditors' Vox
Turning Carbon into Stone: Unlocking Mineralization in Fractured Rock
Carbon mineralization is a promising solution for mitigating greenhouse gas emissions, but we must learn to optimize the complex interplay between reactions and mechanics in fractures to develop a scalable solution.
Posted inEditors' Highlights
How Southern Ocean Currents Modulate Global Biogeochemical Cycles
Swirling currents called mesoscale eddies occupy about 22% of the ice-free Southern Ocean. Using data from drifting floats and satellites, scientists report the impact these eddies have on biogeochemical cycles.
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 inNews
Microbe Preferences Drive Ocean Carbon Pump
New research offers insight into how certain bacteria degrade organic matter in Earth’s oceans.
Posted inEditors' Highlights
The Delicate Balance of Permafrost in Arctic River Floodplains
To evaluate the vulnerability of permafrost in Arctic floodplain landscapes to warming, scientists explore dynamics of its loss and reformation.