As northern Minnesota's climate got wetter, precipitation drove mobile forms of young carbon deeper into peatlands, doubling the size of methane-producing strata.
Global Biogeochemical Cycles
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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.
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Soil Loses Pyrogenic Carbon by an Unexpected Pathway
Fresh insight into pyrogenic carbon disappearance suggests that erosion is not responsible.
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Tracking Carbon in the Alaskan Arctic
Researchers trace carbon through Arctic soils and find an unlikely source of methane and surprisingly low methane oxidation in watersheds throughout northern Alaska.
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Past Phosphorus Runoff Causes Present Oxygen Depletion in Lakes
Sediment cores show how phosphorus pollution in the 1950s led to current, inherited hypoxia in lakes in the Alps.
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Humans Greatly Increase Mercury Levels in the Ocean
A study of the natural cycle of mercury reveals that humans are to blame for a five- to sixfold increase in the oceanic concentrations of the potentially toxic element.
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How Much Carbon Dioxide Does Sunlight Release from Lakes?
A study of more than 1000 lakes in Sweden helps model sunlight's ability to drive greenhouse gas emissions.