The scientists collected core samples from 25 Scots pine trees and stem discs from 54 juniper shrubs, creating paper-thin ...

When it comes to looks, Blue Jays are among the most beautiful birds. However, a lot of homeowners consider these birds a ...

Volcanic eruptions and cold summers leave lasting marks in the wood of northern trees, unlocking the secrets of past climate extremes.

Learn more about these signs of summertime cold, perhaps tied to volcanic activity in 1877 and 1902.

In order to grow properly, trees need an adequate period of warmth during their growing seasons; otherwise, the cell walls [… ...

These rings are not just a visual anomaly but serve as natural archives of past cold summers. Researchers studying samples ...

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 ...

Trees require a specific number of warm days during their growing season to develop properly. Without enough warmth, the cell walls in new growth fail to lignify properly, resulting in “blue rings” ...

an unusual phenomenon etched into the rings of trees and shrubs has offered a glimpse into the Earth's climatic history. Scientists have discovered that peculiar "blue rings" in wood samples ...

When the going gets cold, even tough trees struggle with growing. Trees need a certain number of warm days in their growing seasons to grow properly ...