Rates of continental-scale sediment flux and denudation are similar between glacial and interglacial periods when the aggradation of glacier-eroded sediment inhibits fluvial erosion downstream.
interglacials
Posted inResearch Spotlights
A Million Years Without a Megaslide
A new study goes deep into the Gulf of Alaska to examine the sixth-largest underwater landslide and investigate why a similar event hasn’t happened since.
Posted inNews
The Crocodile Dundee Site Helping Rewrite the History of Australian Bushfires
A lake made famous by Hollywood has yielded powerful new evidence that humans have conducted controlled burns on the Red Continent for tens of thousands of years.
Posted inNews
Greenland Was Much Greener 416,000 Years Ago
A fresh analysis of a historic ice core has revealed evidence of a much smaller ice cap.
Posted inEditors' Highlights
Clumped 18O –18O in Ice Reveals Past Ozone and Wildfire
Reactive gases like ozone are hard to preserve, but clumped isotopes and models provide clues to past ozone and suggest a global increase in wildfire at megafaunal extinction.
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
Inland Mangroves Are Relics of the Past’s Higher Sea Levels
Mangroves found in southern Mexico’s rain forest, 170 kilometers from the nearest ocean, date to a time when sea levels were several meters higher.
Posted inEditors' Vox
Antarctica in a Changing Climate
The impacts of the Antarctic Ice Sheet response to climate change will have global consequences for millions living near the coast. It’s just a matter of when.
Posted inFeatures
A Lost Haven for Early Modern Humans
Sea level changes have repeatedly reshaped the Paleo-Agulhas Plain, a now submerged region off the coast of South Africa that once teemed with plants, animals, and human hunter–gatherers.
Posted inResearch Spotlights
Atlantic Circulation Consistently Tied to Carbon Dioxide
Past ocean surface conditions suggest that over the past 800,000 years, atmospheric carbon dioxide levels typically rose on millennial timescales when Atlantic overturning was weaker and vice versa.