BTN: Researchers discover seven centuries of rainfall data by analysing ancient tree rings. Scientists analysing growth rings of 700-year-old native cypress trees in Western Australia's Wheatbelt say the region suffered a series of megadroughts lasting up to 30 years in past centuries. Dr O'Donnell from the University of Western Australia and her team were able to piece together a record of droughts and floods back to the year 1350 by looking at tree growth rings from a stand of ancient trees she found on the edge of a salt lake.

For the full story read on: Australia's hidden history of megadroughts captured in ancient tree rings (ABC Weather, article dated 26th May 2021) 

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