As heavy rain falls more frequently, the land alongside a river has a greater effect on the waterway’s nutrient levels—for better or worse.
geochemistry
Posted inEditors' Vox
Organic Gases Released and Taken Up by Soil Lack Quantification
Soils both emit and take up different biogenic volatile organic compounds, altering the chemical composition of the atmosphere and influencing local, regional, and global climate.
Posted inNews
The Dawning of the Age of Old Aquifers
A new technique using 81Kr can measure the age of old groundwater in arid regions. The method can be used as a proxy for past climates and weather patterns.
Posted inNews
New Tool Reveals That Soils Are Teeming with Active Microbes
BONCAT, a new type of amino acid tagging, highlights and categorizes active soil microbes in situ.
Posted inNews
How Ice Cores Are Helping to Track Preindustrial Ozone
Research helps allay concerns about discrepancies between atmospheric chemistry models and historical direct measurements.
Posted inNews
The Jail That Keeps Oxygen in the Air
Oxygen shouldn’t be in the air we breathe. But it is, and the reason why is almost criminal.
Posted inResearch Spotlights
Treating Colloids as Clusters Better Predicts Their Behavior
New research suggests that an accurate prediction of colloidal particle mobilization in the environment should account for the effect of clustering.
Posted inNews
Alexander R. “Mac” McBirney (1924–2019)
This former West Point graduate and coffee grower transformed igneous petrology and volcanology.
Posted inNews
The Toxic Legacy of DDT Lives On in Remote Canadian Lakes
DDT and its breakdown products permeate lake sediments decades after the pesticide was banned.
Posted inOpinions
Uncontrolled Chemical Releases: A Silent, Growing Threat
Uncontrolled releases of household, industrial, and agricultural chemicals during natural disasters pose an underappreciated hazard to humans and ecosystems. Here’s what we can do.