Powered by

-The Ohio State University: Tree rings show evidence of droughts, floods along the Potomac River; 350 years of data aligns with historical documents, study shows

Dec 24, 2020 - ENP Newswire

Tree rings in the Potomac River watershed show evidence of severe droughts and floods over the last 350 years - and scientists can pinpoint the years of those events well enough that they align with writings from people that include Thomas Jefferson.

The findings, published earlier this month in the journal Water Resources Research, could help water managers predict water shortages and floods in Washington, D.C.

We've got these Jefferson quotes and other qualitative records - ...