Climate change is shifting the makeup of a key nutrient in rivers across Russia, Alaska, and Canada, with the potential for ecosystem-wide impacts.
Global Biogeochemical Cycles
Posted inResearch Spotlights
When Rain Falls in Africa, Grassland Carbon Uptake Rises
Satellite data suggest an explanation for the continent’s high year-to-year variability in carbon uptake.
Posted inResearch Spotlights
Tracing Black Carbon’s Journey to the Ocean
Scientists surveyed a trio of estuaries in pursuit of a missing source of oceanic dissolved black carbon.
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More Bubbles Means More Variation in Ocean Carbon Storage
A new model accounting for the role of bubbles in air-sea gas exchanges suggests that ocean carbon uptake is more variable than previously thought.
Posted inResearch Spotlights
Robotic Floats Quantify Sinking Carbon in the Southern Ocean
An estimated 2.69 billion tons of carbon are exported to the deep sea every year from the Southern Ocean.
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Glaciers Offer Clues into the Path of Fossil Fuel Pollution
New research traces the origin of carbon deposited from the atmosphere onto glaciers.
Posted inResearch Spotlights
The Middle East’s First Comprehensive Carbon Budget
The first greenhouse gas budget for Central and West Asia—24 countries, including Yemen, Türkiye, Kazakhstan, and Afghanistan—was just published.
Posted inResearch Spotlights
Dry Heat, Wet Heat, and Wetland Methane Emissions
Compound weather events—such as extreme cold or heat combined with severe dryness or precipitation—have a greater effect on wetland methane emissions than discrete weather extremes do.