Between 26-15 My ago, forests covering west-central North America gave way to open, grassy habitats. Now, oxygen isotope records suggest this shift is owed to drier winters and increased aridity.
paleoclimatology & paleoceanography
Posted inNews
Pequeños cambios climáticos podrían verse magnificados por procesos naturales
Un nuevo estudio utiliza técnicas de modelado para descubrir cómo pequeños incidentes de calentamiento pueden convertirse en eventos hipertermales que duran miles de años.
Posted inNews
Un nuevo modelo para un antiguo evento de extinción
Un modelo 3D del sistema Tierra incorpora variables como la temperatura y la sulfurización para aclarar el evento de extinción de finales del Pérmico.
Posted inFeatures
The Young Earth Under the Cool Sun
How did our planet avoid being frozen solid during the early days of our solar system?
Posted inNews
A New Model for an Old Extinction Event
A 3D Earth system model incorporates variables such as temperature and sulfurization to shed light on the end-Permian extinction event.
Posted inEditors' Vox
Using Hematite to Decipher Past Climates and Environments
The magnetic and color properties of the mineral hematite give clues to past environmental conditions and is being used for paleoclimatic reconstruction.
Posted inScience Updates
Rethinking the Search for the Origins of Life
Early Earth conditions and the chemistry that led to life were inextricably interwoven. Earth scientists and prebiotic chemists are working together in new ways to understand how life first emerged.
Posted inNews
“Sticky” Ice Sheets May Have Led to More Intense Glacial Cycles
New research attributes a shift to longer, stronger glacial cycles to increased friction between ice sheets and bedrock in the Northern Hemisphere 1 million years ago.
Posted inNews
Ancient Eruptions Reveal Earliest Settlers on the Faroe Islands
Lake sediment is helping scientists resolve a decades-long historical mystery.
Posted inNews
Ancient Fish Thrived During a Period of Rapid Global Warming
Teeth and scales preserved in marine sediments suggest that fish thrived during one of Earth’s fastest-warming periods.