Radiocarbon dating, luminescent sand grains, and climate records point to drought as the reason for the civilizations’ demise.
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La región agrícola más importante de la India se está desertificando
El cultivo de arroz consume más agua de la que el Punjab puede recargar. Si continúan las tasas de riego actuales, el estado vaciará sus reservas de agua subterránea dentro de 20 años.
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An Asteroid “Double Disaster” Struck Germany in the Miocene
By analyzing sediments jostled by ground shaking, researchers have shown that two impact craters near Stuttgart were created by independent asteroid impacts rather than a binary asteroid strike.
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Trees That Live Fast, Die Young, and Mess with Climate Models
The trade-off between tree longevity and life expectancy can mean future carbon uptakes are overestimated in current global climate models.
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Terrestrial Plants Flourished After the Cretaceous–Paleogene Extinction
Compounds in ancient plant leaves tell the story of how an extinction event shaped our planet’s ecosystems.
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Suicide Rates May Rise After Natural Disasters
Rates of suicide increased most dramatically in the second year after a disaster, after many postdisaster mental health assistance programs expire.
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Urban Agriculture Combats Food Insecurity, Builds Community
Innovations in urban agriculture—from creative reuse of stormwater to soil rehabilitation—can help fight food insecurity and prevent further food issues.
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Cover Crops, Sensors, and Food Security
Forward-Thinking Ideas for the USDA’s Agriculture Innovation Agenda
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Tree Rings Reveal How Ancient Forests Were Managed
By analyzing thousands of oak timbers dating from the 4th to 21st centuries, scientists have pinpointed the advent of a forest management practice.
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The Catcher in the Ice
There are three ways to extract gases from an ice core. The cleanest one, sublimation, is getting easier.