Liviu Giosan
geosan.bsky.social
Liviu Giosan
@geosan.bsky.social
Earth Historian
We can reconstruct the environment but humans are truly unpredictable...
In 2022, archaeologists at @uni-kiel.de's @neolithicbodies.bsky.social found 34 decapitated skeletons piled in a space the size of a parking spot. In the 3 years since, they’ve found 50 more. The mass grave is evidence for the collapse of the 1st pan-European culture 7,000 years ago. @science.org 🏺💀
Headless bodies hint at why Europe’s first farmers vanished
Wave of mass brutality accompanied the collapse of the first pan-European culture
www.science.org
November 21, 2025 at 5:05 AM
Reposted by Liviu Giosan
The origins of civilization contain a chicken and egg problem: If large scale irrigation projects made complex Mesopotamian states possible, who organized and built all those canals? A new study by @whoi.edu's @geosan.bsky.social and co-author Reed Goodman may have solved the riddle: @science.org
Sumerian civilization may have been jump-started by the rise and fall of tides
Millennia before the first cities, early Mesopotamians probably harnessed tides to irrigate crops
www.science.org
October 23, 2025 at 3:13 PM
Reposted by Liviu Giosan
Beautiful!!!

It's surprising that first 40m cores took so long to be obtained and studied.

This explanation, though the cycle would be every 12h instead of yearly, would be analogous to the Nile phenomenon and the rise of Egyptian civilization, which it predated.
October 23, 2025 at 7:27 PM
Reposted by Liviu Giosan
Hot off the presses! Here’s a new article that I co-authored with my Lagash Archaeological Project colleagues on a geoarchaeological study of what we believe to be evidence of hydrological warfare in the Third Millennium BCE.

onlinelibrary.wiley.com/doi/10.1002/...
The Flooding of Lagash (Iraq): Evidence for Urban Destruction Under Lugalzagesi, the King of Uruk and Umma
High-resolution remote sensing, magnetometry, and trench stratigraphy identify a significant flood event at Lagash (modern Tell al-Hiba) during the late Early Dynastic period (ca. 2400–2350 BC). Sate...
onlinelibrary.wiley.com
August 26, 2025 at 2:37 PM
Reposted by Liviu Giosan
Far from being impossible, or a violation of academic freedom (Stanford!), academic institutions can, in fact, reject sponsorship from fossil fuel companies who are using them to greenwash their appalling environmental record.
Climate News: London’s Science Museum forced to cut ties with oil giant – and faces pressure over other sponsors: Campaigners welcome ‘seismic shift’ and urge museum bosses to review links with other fossil fuel s...
London’s Science Museum forced to cut ties with oil giant – and faces pressure over other sponsors
Campaigners welcome ‘seismic shift’ and urge museum bosses to review links with other fossil fuel sponsors The Science Museum has been forced to cut t
www.theguardian.com
July 13, 2024 at 11:59 AM