There are three ways to extract gases from an ice core. The cleanest one, sublimation, is getting easier.
paleoclimatology & paleoceanography
Posted inNews
Overturning in the Pacific May Have Enabled a “Standstill” in Beringia
During the last glacial period, a vanished ocean current may have made the land bridge between Asia and the Americas into a place where humans could wait out the ice.
Posted inEditors' Highlights
Life in the Chicxulub Crater Years After It Was Formed
While the seas were still churning from the impact and the seawater temperatures were high due to the hydrothermal activity, life was reestablishing itself inside the crater.
Posted inNews
Finding Prehistoric Rain Forests by Studying Modern Mammals
Mammal teeth store a record of the plants they ate, providing clues about the ecosystems in which they lived.
Posted inEditors' Highlights
Abrupt Climate Shifts Change the Latitudes of Storm Activity
A new 6500-year construction of storms combined with other paleo-storm records finds abrupt changes in the Atlantic Ocean circulation impact the latitudinal preference of storm activity.
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 inNews
Sediment Layers Pinpoint Periods of Climatic Change
Researchers studying sediment cores from the Gulf of Alaska have pinpointed when the Cordilleran Ice Sheet, now extinct, disgorged icebergs into the Pacific Ocean.
Posted inNews
Bat Guano Traces Changes in Agriculture and Hurricane Activity
Researchers hiked and rappeled into two caves in Jamaica to collect over 40 kilograms of excrement.
Posted inNews
Climate Change May Shift Coral Population Dynamics
New paleoceanographic research indicates that warming waters may contribute to fewer coral reefs but to a flourishing presence of soft-bodied corals.
Posted inAGU News
Trouet Receives 2019 Paleoceanography and Paleoclimatology Willi Dansgaard Award
Valerie Trouet received the 2019 Willi Dansgaard Award at AGU’s Fall Meeting 2019, held 9–13 December in San Francisco, Calif. The award is given in recognition of “high research impact, innovative interdisciplinary work, educational accomplishments, such as mentoring, or positive societal impact” and “exceptional promise for continued leadership in paleoceanography and paleoclimatology.”