The Cotopaxi is one of the most active volcanoes in Ecuador. At 5,897 meters above sea level, it is the second-highest peak in the country and together with the Sangay and Reventador volcanoes ...

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

Trees need a certain number of warm days in their growing seasons to grow properly; otherwise, the cell walls of new growth ...

Did you know that you can go mountain biking in Cotopaxi National Park? Aka one of the world's highest active volcanos? The ...

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

Blue growth rings in woody plant stems indicate years when cells failed to lignify properly due to summers that were too cold ...

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

In Norway, scientists have found blue rings in trees that hint at how volcanic eruptions disrupted growth throughout history.