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 ...

Since trees and shrubs can live for hundreds of years, identifying these blue rings allows us to spot cold summers in the past. By looking at pine trees and juniper shrubs from northern Norway ...

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 ...

Bugs like mites, aphids, or even pine beetles can wreak havoc on your trees and shrubs, causing the needles to brown. There's ...

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 ...

But for many years those occasional flare-ups were suppressed, and the pine barrens became choked with trees and shrubs. The narrow South Fork's geography would make a large, spreading wildfire ...

Overall, only 2.1% of the pine trees' rings and 1.3% of the juniper shrubs' rings were blue; the cells which hadn't lignified properly were mainly found at the end of growth rings, in latewood ...