New observations of recently discovered gravity perturbations that precede seismic waves have the potential to improve earthquake early-warning systems in California and other tectonic settings.
Research Spotlights
Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.
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Late Cretaceous Extreme Warmth at High Southern Latitudes
New proxy data indicate sea surface temperatures at high southern latitudes reached over 35°C during a period of extreme greenhouse climate that began about 100 million years ago.
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Antarctica’s Seasonal Streams Contribute Iron to the Ross Sea
Analysis of nutrient concentrations in four streams that discharge to the Southern Ocean indicates they are important sources of iron and phosphorous for coastal phytoplankton communities.
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Rising Methane Emissions Could Derail the Paris Agreement
A new study looks for the source of a spike in the potent greenhouse gas methane.
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Meeting User Requirements for Sea Level Rise Information
A new framework based on decision analysis can help scientists produce practical data that support informed decisions about climate adaptations.
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Numerical Models Overestimate Near-Inertial Wind Power Input
The first study to estimate the global wind power on internal gravity waves based solely on observations offers a new benchmark for comparing future calculations.
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Solar Flares Increase Radiation Risk on Commercial Aircraft
A new study quantifies how space weather may affect polar transcontinental flight.
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Mapping Ice Algal Blooms from Space
Satellite data reveal how colorful algae are melting the Greenland ice sheet.
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If Precipitation Extremes Are Increasing, Why Aren’t Floods?
Improving our understanding of the relationship between changes in precipitation and flooding due to rising temperature is a new grand challenge for the scientific community, argue the authors of a recent commentary.
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How the Moon Got Its Concentric Rings
A new study explores the origins of massive, multiringed lunar craters.