Machine learning and data on aquifer type, sediment thickness, and proxies for irrigation water use has been used to produce the most comprehensive map of land subsidence in the western U.S. to date.
proxies
Posted inNews
Fragrances in an Ice Core Tell a Story of Human Activity
An ice core from Europe’s highest peak contains scent-imparting molecules whose trends mirror the Soviet Union’s economic ups and downs.
Posted inResearch Spotlights
Traduciendo Modelos Climáticos al Lenguaje de Datos Paleoclimáticos
Un nuevo modelo permitirá a los modelos climáticos interpretar mejor las reconstrucciones paleoclimáticas derivadas de sedimentos de lagos y podrá mejorar las predicciones de las condiciones climáticas futuras.
Posted inNews
Humans Colonized Polynesia Much Earlier Than Previously Thought
Evidence from mud, charcoal, and feces suggests humans arrived in East Polynesia during the driest period in 2 millennia.
Posted inEditors' Highlights
Trees Are Watching Us and Our Actions
Annual growth rings in trees tell us more than climate history; they can also document the rise and fall of human industrial activities.
Posted inResearch Spotlights
Southern California Climate Change over 100,000 Years
Researchers used a sediment core from a lake in California’s San Bernardino Mountains to track the effect of climate on vegetation, fire, and erosion between about 120,000 and 15,000 years ago.
Posted inResearch Spotlights
How to Read Atmospheric History Written in Flowstones
Oxygen isotope ratios in cave deposits reflect past climates, but interpreting these data is not straightforward. A new study explores what these ratios really tell us.
Posted inNews
A Dirty Truth: Humans Began Accelerating Soil Erosion 4,000 Years Ago
Recent research combining analysis of carbon dating, sediment accumulation rates, and pollen records from 632 lake beds worldwide finds deforestation tied to increased soil erosion.
Posted inNews
Looking for Prehistoric Pollen? Check the Floodplains
A new methodology calculates the soil properties most likely to preserve pollen.
Posted inNews
Antarctic Ice Cores Offer a Whiff of Earth’s Ancient Atmosphere
Bubbles of greenhouse gases trapped in ice shed new light on an important climate transition that occurred about a million years ago.