Ancient plant and animal DNA buried in Arctic sediments preserve a 50,000-year history of Arctic ecosystems, suggesting that climate change contributed to mammoth extinction.
Earth science
Posted inResearch Spotlights
New Theory Connects Tree Uprooting and Sediment Movement
Tree throw from extreme wind events plays an important role in the movement of sediment and erosion on forested hillslopes. A new theory offers a novel way to measure its impact.
Posted inENGAGE, News
Roman-Era Millstone and Mixer Makers Knew Their Rocks
The geochemistry of basalt millstones and mixers from the city of Volubilis suggests a local origin—and that rocks were picked for specific purposes, from crushing olives to mixing dough.
Posted inResearch Spotlights
Cosmic Dust May Be Key Source of Phosphorus for Life on Earth
When tiny particles enter Earth’s atmosphere, a newly described series of chemical reactions may lead to production of phosphorus-containing molecules that are essential for biological processes.
Posted inENGAGE, News
Sobreviviendo en la periferia de una ciudad de terremotos
La Ciudad de México es una de las áreas urbanas más propensas a desastres del mundo. Después de un terremoto, las comunidades marginadas que viven en la periferia de la ciudad están expuestas a más peligros que el simple derrumbe de edificios.
Posted inNews
Identifying an Eruption “Tipping Point” in Hot Spot Volcanoes
By analyzing lava samples, researchers show how chemical processes that occur during magma’s ascent to the surface may contribute to a volcano’s eruptible state.
Posted inResearch Spotlights
Stratospheric Balloons Listen In on Ground Activity
Solar-powered hot-air balloons, floating 2.5 times as high as Mount Everest, detected a buried explosion more clearly than ground-based sensors did.
Posted inNews
The “Internet of Things” Boosts Agricultural Livelihoods in India
New technology is bringing better connectivity to remote areas, helping farmers improve crop yields and allowing fisherfolk to venture more safely out into the sea.
Posted inFeatures
Windjamming on the Warming Gulf of Maine
Living in Geologic Time: A sailing venture reveals economic upheaval along Maine’s enduring coast.
Posted inResearch Spotlights
Exploring Methane Emissions from Africa’s Tropical Forests
Global methane budgets suffer from a lack of field studies in African forests, but new research sheds light on methane emissions and uptake from upland forests in the Congo Basin.