Isotope data bring scientists one step closer to revealing the microbial processes behind nitrous oxide emission in the tundra.
Global Biogeochemical Cycles
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What Proportion of River Nutrients Reaches the Open Sea?
Results of the first geographically based estimates of river nutrient supply indicate that 75% of dissolved nitrogen and 80% of phosphorus reach the open ocean.
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Tiny Creatures Form Massive, Bright Ring Around Antarctica
Dense algae populations in the Great Calcite Belt could cause carbon dioxide release from the ocean into the atmosphere.
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Smoke Signals in the Amazon
Forest fires can occur naturally, but in the world's largest rain forest, fire can signal large-scale deforestation.
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Using Isotope Fingerprints to Solve a Methane Mystery
Atmospheric methane levels are rising, and isotopic ratios within the greenhouse gas suggest that the tropics may be to blame.
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A Wetter Climate Increases Methane Production in Peat
As northern Minnesota's climate got wetter, precipitation drove mobile forms of young carbon deeper into peatlands, doubling the size of methane-producing strata.
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Can We Predict the Future of Ocean Carbon Dioxide Uptake?
A new understanding of uncertainties in climate change models allows scientists to decide which source to tackle first in order to better forecast our planet's changing climate.
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A New Mechanism for Nitrogen Cycling in the Southern Ocean
A nitrite-oxidizing enzyme may work in reverse for some microbes in the Antarctic autumn.
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Can Mangroves Buffer Ocean Acidification?
New research evaluates the ability of coastal foliage to influence the ocean's pH.
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Moored Ocean Buoy Tracks Marine Carbon Cycle Variations
Years of data from a North Pacific ocean station show that the ocean's ability to pull carbon out of the atmosphere is controlled by biological and physical processes that change between seasons.