In order to grow properly, trees need an adequate period of warmth during their growing seasons; otherwise, the cell walls […] The post These Bizarre Blue Tree Rings Are Unveiling Details About Cold ...

A simple blue stain could force trees into giving up their memories of cold summers and volcanic winters, a recent study reveals, giving researchers a new way to precisely reconstruct ancient climates ...

Buchwal's team analyzed samples from 25 Scots pine trees and 54 juniper shrubs, staining and photographing their growth rings under a microscope. The study revealed that blue rings were more ...

Scientists studying pine trees and juniper shrubs in northern Scandinavia are revealing the weather of the past by looking at tree rings — which can tell us far more than just the trees’ age. ‘Blue’ ...

Selecting Mount Iškoras in Norway for a search for blue rings, a team of researchers took samples from 25 pine trees and 54 juniper shrubs, representing the species Pinus sylvestris and Juniperus ...

Get Instant Summarized Text (Gist) Blue rings in tree and shrub growth rings indicate past cold summers, likely linked to volcanic eruptions. Analysis of Scots pine and juniper samples from ...