Volcanic eruptions and cold summers leave lasting marks in the wood of northern trees, unlocking the secrets of past climate extremes.
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Curious blue rings in trees and shrubs reveal cold summers of the past—potentially caused by volcanic eruptionsOverall, 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 ...
They have Blue Ice, Carolina Sapphire, Eastern Red Cedar, Leyland Cypress, Murray Cypress, Virginia Pine, White Pine to choose and cut and pre-Cut Fraser Fir. They also sell container trees and ...
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 ...
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