Cosmogenic silicon-based estimates of the amount of biogenic silica stored in clays along continental margins could explain the large discrepancy in the nutrient’s global marine budget.
Research Spotlights
Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.
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How Drought Plays Out
Humans are less likely to deplete groundwater when rainfall varies between years.
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Rethinking How Water Circulates Between the Oceans and Land
A reexamination of the global water cycle shows that tropical coastlines exert a profound influence on atmospheric water circulation by wringing water vapor from the atmosphere.
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A Better Way to Probe Peat
Florida scientists use ground-penetrating radar to image underground carbon stores in the Disney Wilderness Preserve.
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Using Radar to Understand How Volcanic Eruptions Evolve
Radar satellite imagery can be used to measure constructional changes in the topography of long-lived volcanoes, according to a new study of Ecuador’s El Reventador volcano.
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Testing a New Tool That Illuminates Tiny Fractures in Coal
A computational model outperforms a widely used microcomputed tomography imaging method in characterizing coal fractures.
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Tracing Electric Currents That Flow Along Earth’s Magnetic Field
A new study uses satellite data to examine a worldwide system of electric currents in greater detail than ever before.
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Scientists Probe Water Inside Leaves via Satellite
Improving satellite-based studies of vegetation optical depth, a critical ecosystem indicator.
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What Feeds Indonesia’s Destructive Mud Eruption?
New advances in seismic investigations suggest links in plumbing between nearby magma volcanoes and a mud-erupting system that has been spewing for more than a decade.
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The Power of Water, Wind, and Solar (and Nothing Else)
Road map for improving climate calls for 100% clean, renewable energy by 2050.