Professor of environmental history at Georgetown University. Creator, "The Climate Chronicles." Author of the new book, "Ripples on the Cosmic Ocean." Interested in all things climate change, outer space, existential risk, and past for present.
Dagomar Degroot
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Event - Reflections on Resilience: 20,000 Years of Climate History
A Climate History Plenary with @dagomardegroot.bsky.social
Part of #CHESS2026
Sunday – 31 May 2026 – 17:30-18:45 ADT
Murphy Student Centre 110 (McMillan Hall) – University of Prince Edward Island
niche-canada.org/2026/05/22/e...
No. Instead of thinking, "what do people want to hear, and how can I give it to them?", politicians should ask, "what do I think is important, how can I explain why it's important, and how can I offer solutions?"
Authenticity matters, now more than ever. #Climate
www.nytimes.com/2026/05/09/o...
This is incredible. The new NASA image release from #Artemis includes a sequence of 'Hello World' still photographs.
I've been processing / animating them and here's what the original didn't show us:
Satellites, including their solar arrays, lightning storms
and dancing aurora!
31 May 2026 - Charlottetown, Prince Edward Island - Dr. Dagomar Degroot is a leading climate historian from Georgetown University. He has published several high-impact, award-winning books on climate ...
niche-canada.org
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Dagomar Degroot
NiCHE Canada
This really would be the end of science in the US marginalrevolution.com/marginalrevo...
Today at 5 PM EST! Join @amandagefter.bsky.social and me for a conversation that spans Earth and the solar system, exploring how natural and human histories intersect. We'll talk about everything from #climatechange to #alien civilizations - it should be fun. #EnvHist #Astronomy luma.com/apv6a38z
Andy Saunders - Apollo Remastered
"Project Hail Mary" imagines how an environmental change on the Sun spurs an effort to protect the environment of Earth. In a way, it's the thrilling, fictional counterpart to my new book, "Ripples on the Cosmic Ocean." #EnvHist #ProjectHailMary
sciencepolitics.org/2026/05/01/p...
EM artists worked in the Little Ice Age. Their art didn't necessarily record the effects of climate change. It can't simply tell us how to survive global warming.
But climate change clearly played a role in the creation and consumption of EM art. And that must be part of art history. (2/2) #EnvHist
As @climatechirper.bsky.social says, "The deliberate actions of colonialists in the 1870s disrupted local systems that communities relied on for being resilient to climate variations." So, it's wrong to claim that it was #ElNino that killed millions in 1877.
www.washingtonpost.com/weather/2026...
Had I been interviewed for this article (rather than merely quoted), I would have said:
We don't seek signs of #ClimateChange in early modern (EM) art because today's climate is changing. We seek it because the early modern climate changed. (1//2)
www.jns.org/feature/once...
