Sci Show: Thomas Jefferson wrote about a severe drought in 1820. This study of tree rings showed just how severe it was. (And could help water managers in Washington, D.C. predict future droughts and floods)

Wednesday, December 23, 2020

Thomas Jefferson wrote about a severe drought in 1820. This study of tree rings showed just how severe it was. (And could help water managers in Washington, D.C. predict future droughts and floods)

https://ift.tt/3hekCSz via /r/science https://ift.tt/2M2v3Ns

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