Chainsaw geologist studies historical climate change in growth rings
“My goal is to complete the southern Swedish tree chronology. However, there is a lot of work remaining. So I should be busy until I retire”, says Johannes Edvardsson: Photo:Kennet Ruona By analysing the growth rings from trees that are several thousand years old, preserved in peat bogs, geologist Johannes Edvardsson is creating a unique timeline of Sweden’s historical climate. The buried time cap
https://www.staff.lu.se/article/chainsaw-geologist-studies-historical-climate-change-growth-rings - 2025-08-23