In the frigid landscapes of northern Norway, an unusual phenomenon etched into the rings of trees and shrubs has offered a glimpse into the Earth's climatic history. Scientists have discovered ...

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 ...

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’ ...

Blue growth rings found in woody plant stems represent years when cells did not lignify properly because of summers too cold for growth When the going gets cold, even tough trees struggle with ...

For this week’s deeper dive, we recap recent reporting from Ivan Semeniuk that says Canada’s plans to plant two billion trees will be best accomplished by looking close to home. Let’s start ...

Homeowners and residents, determined to keep two trees alive and out of harms reach of massive chainsaws and woodchippers, are now occupying the space under the trees. The theory here, is that the ...

By studying the trees' rings and using radiocarbon dating techniques, researchers determined that the trees lived between 5,950 and 5,440 years ago, during a period of gradual temperature decrease.

a team from Montana State University studied the trees' rings and used carbon dating to work out their age. They also studied ice cores taken from the area. Volcanic activity in Iceland 5,100 ...