A forest 'glow' reveals awakening from hibernation

Winters in the northern hemisphere are brutal. The harsh conditions drive some species to hibernate; bears reduce their metabolic state to conserve energy until spring. Forests also endure winter by conserving energy; they ...

These nine measures reveal how forests are controlled by climate

Instead of blood pressure, temperature, and heart rate, the vital signs for a forest are captured in key traits such as the amount of nitrogen in a tree's leaves, the leaf area, or the density of the wood. These "functional ...

Wildfire ash could trap mercury

In the summers of 2017 and 2018, heat waves and drought conditions spawned hundreds of wildfires in the western U.S. And in November, two more devastating wildfires broke out in California, scorching thousands of acres of ...

3-D view of Amazon forests captures effects of El Nino drought

Three-dimensional measurements of the central Brazilian Amazon rainforest have given NASA researchers a detailed window into the high number of branch falls and tree mortality that occur in response to drought conditions. ...

Tens of millions of trees in danger from California drought

California's forests are home to the planet's oldest, tallest and most-massive trees. New research from Carnegie's Greg Asner and his team reveals that up to 58 million large trees in California experienced severe canopy ...

Drought's lasting impact on forests

In the virtual worlds of climate modeling, forests and other vegetation are assumed to bounce back quickly from extreme drought. But that assumption is far off the mark, according to a new study of drought impacts at forest ...

Pygmies' stunted growth explains human success

The pygmies of West Africa evolved their short stature independently, and very differently, from their cousins in East Africa, French researchers said Tuesday.

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