An ambassador for African geosciences and for Ethiopia, this celebrated geophysicist will be remembered for his contributions in research as well as his steadfast support of colleagues.
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The Legacy of Nitrogen Pollution
Researchers track decades of nitrogen inputs and uptake across the United States, highlighting the need for policy to address the legacy effects of this essential nutrient and pollutant.
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Biggest Risk to Surface Water After a Wildfire? It’s Complicated
Whether you’re considering short-term or long-term changes to water quality after a wildfire, scientists agree that sedimentation is a big concern.
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Winter Drought Relief Unlikely in Western U.S.
This year is still on track to be one of the hottest years on record around the globe.
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How Infrastructure Standards Miss the Mark on Snowmelt
Nationwide, civil engineers consider precipitation values from NOAA to design their structures. But those values are missing another contributor to flood risk: snowmelt.
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What Controls Giant Subduction Earthquakes?
Subduction zones with a low dipping angle and thick sediments can produce giant earthquakes; this finding lets researchers estimate worst-case scenarios for coastlines around the world.
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¿Podría la Vida Estar Flotando en las Nubes de Venus?
Si están presentes, los microbios podrían explicar patrones de evolución en la atmósfera planetaria de Venus, al observarse con luz ultravioleta.
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Sediment Layers Pinpoint Periods of Climatic Change
Researchers studying sediment cores from the Gulf of Alaska have pinpointed when the Cordilleran Ice Sheet, now extinct, disgorged icebergs into the Pacific Ocean.
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Bat Guano Traces Changes in Agriculture and Hurricane Activity
Researchers hiked and rappeled into two caves in Jamaica to collect over 40 kilograms of excrement.
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Hydrology Helps Identify Future Malaria Hot Spots
Complex hydrological processes—not just the amount of rainfall—help determine where malaria-transmitting mosquitoes can thrive.