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Atmospheric science
George Mason University
Events

Upcoming Events

Mar 4

4 Mar (CLIM/GEOL) Jared Nirenberg, Cold Seas in a Warmer Past

Mar 4, 2026, 4:30 - 5:30 PM

Mar 6

Analysis Seminar: Grassmannian codes from stratified frames

Mar 6, 2026, 11:30 AM - 12:30 PM

Mar 6

CAGS: Reciprocal complements: a new construction on integral domains

Mar 6, 2026, 12:30 - 1:30 PM

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22 Jan (GEOL) Anya Hess, Paleoceanography

Jan 22, 2026, 4:30 - 5:30 PM

Speaker: Anya Hess, George Mason University

Time: Thu, 22 Jan, 4:30pm ET

Location: Exploratory 1309 and via Zoom (for link, email lhinnov@gmu.edu)

Title: Ocean Oxygenation Response to Climate Change: Lessons from Past Warm Periods

Abstract: In recent decades, the oceans have lost oxygen at an alarming rate, yet climate model projections for the future of this trend diverge beyond the year 2100. Reconstructions from the geologic past, particularly past warm periods, can help us anticipate the long-term response of ocean oxygenation to climatic warming. I will discuss how and why oxygenation responded to two past warm periods, the Pliocene (~3 Ma) and Miocene (~16 Ma), that are analogous to our not-too-distant future under different emissions scenarios. Ultimately, we will see what lessons the past can teach us about the future of ocean (de)oxygenation.

Bio: Anya is a Postdoctoral Research Fellow at George Mason University, using geochemical tools to reconstruct ocean oxygenation response to past climate change.


 

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