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paleoclimatology & paleoceanography

Scientists point out red Saharan dust in a sediment core drilled from the Atlantic Ocean floor off West Africa.
Posted inNews

Podcast: When the Sahara Was Green

Liza Lester, staff writer by L. Lester 16 April 20196 March 2026

Past climate change likely motivated human migrations.

Aerial view of the Grand Canyon
Posted inNews

Did Global Glaciation Cause the Great Unconformity?

Adityarup Chakravorty, freelance science writer by Adityarup Chakravorty 9 April 201917 February 2023

In a new study, researchers make the case that large-scale glaciation during parts of the Neoproterozoic era led to extensive erosion of Earth’s crust.

Antarctic sea ice
Posted inScience Updates

Understanding Past Changes in Southern Ocean Sea Ice

by M. Patterson, R. Rhodes and C. Allen 8 April 201917 August 2022

C-SIDE Workshop; Vancouver, British Columbia, Canada, 24–26 October 2018

A horizon on the ocean
Posted inNews

Ice Drove Past Indo-Pacific Climate Variance

Sarah Derouin, Science Writer by Sarah Derouin 2 April 20192 March 2023

Researchers used both terrestrial and marine proxy data to reconstruct the dramatic and dynamic climatic changes.

A photomicrograph of ten species of foraminiferans.
Posted inAGU News

How Did We Get Here?

Heather Goss, AGU Publisher by Heather Goss 1 April 201915 April 2022

With a discovery made from fossils in the seabed, paleoceanographers and paleoclimatologists began tracing the delicate path between ancient eras and our future.

Jezero Crater River Delta on Mars
Posted inNews

What Ancient Rivers on Mars Reveal About Its “Great Drying”

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 27 March 201923 February 2023

Dried-up rivers on Mars suggest that the planet was wet in the not-too-distant past.

eastern-mediterranean-map
Posted inNews

Ancient River Discovery Confirms Mediterranean Nearly Dried Up in the Miocene

Mara Johnson-Groh, Science Writer by Mara Johnson-Groh 25 March 201931 May 2023

Sedimentary deposits reveal a Nile-sized river system flowing from what are today Turkey and Syria.

The moon rises behind a tree in the Ancient Bristlecone Pine Forest in California
Posted inResearch Spotlights

Topography and Microclimate Shape Tree Ring Growth

Aaron Sidder, freelance science writer by Aaron Sidder 25 March 201915 October 2021

Wizened bristlecone pines in California reveal past climate trends, and new research shows how slight variations in landscape position drive different growth patterns in trees’ annual rings.

Vegetation growing in the heathlands of Chobham Common, Surrey
Posted inScience Updates

Ancient Fires and Indigenous Knowledge Inform Fire Policies

by C. Adolf, D. Hawthorne and D. Colombaroli 22 March 20194 May 2022

Global Paleofire Working Group 2: Diverse Knowledge Systems for Fire Policy and Biodiversity Conservation; Egham, United Kingdom, 4–9 September 2018

Researchers digging up a Qingjiang fossil on a bank of the Danshui River
Posted inNews

Scientists Discover Pristine Collection of Soft-Tissue Fossils

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 21 March 201930 January 2023

The fossils include jellyfish, box jellies, branched algae, and sponges, which are underrepresented in or missing from other deposits.

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24 April 202623 April 2026
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