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.
nitrogen
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New Way to Gauge Lightning's Role in Ozone Formation
Comparing satellite data on a key airborne ozone precursor to readings from a lightning sensor network reveals how much different types of lightning strokes affect atmospheric ozone chemistry.
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Bat Guano: A Possible New Source for Paleoclimate Reconstructions
Nitrogen isotopes within samples of bat excrement accurately reflect modern precipitation patterns. So could guano serve as a paleoclimate record?
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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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Arctic Survey Hunts for Missing Nitrogen and Phosphorus
A new survey of ocean waters flowing in and out of the Arctic may shed light on how dissolved organic nitrogen and phosphorus contribute to nutrient cycling in the Arctic.
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Nitrogen Garners Starring Role in Refined Earth System Model
Scientists create a more realistic representation of plant nitrogen uptake and usage to improve global climate simulations.
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Drifting Floats Reveal Nitrate Patterns in Mediterranean Sea
Next-generation autonomous platforms allow scientists to understand physical mechanisms that control nitrate availability in the Mediterranean surface water.
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Human Activities Account for Less Than a Third of Ocean Nitrogen
Researchers found that humans contribute far less nitrogen to the open ocean than previously thought.
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Reservoirs Act as a Source for Greenhouse Gases
Scientists examine nitrous oxide production in aquatic environments and the conditions that drive it.
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Cave-Dwelling "Slime Curtains" Cycle Nitrogen and Iron
In a cave accessible only by daredevil divers, extraordinary microbial colonies metabolize nitrogen and iron nutrients and possibly remove pollutants from water.