This wildfire season, brushy tamarisks, also known as salt cedars, are a catalyst for Arizona blazes that foul the air with ...

This wildfire season, brushy tamarisks, also known as salt cedars, are a catalyst for Arizona blazes that foul the air with acrid smoke.

A start-up company says it has devised a way to dispose of debris from forest-thinning projects and reduce wildfire risk.

Scattered across a silent Arizona desert, the logs look freshly cut, but no human hand ever touched them. What lies across this vast, otherworldly park is the fossilized remains of a forest that lived ...

The city of Milbank, South Dakota, is battling an emerald ash borer infestation threatening over half its public trees. Officials chose a $2.4 million herd immunity treatment plan over a more ...

The region’s unique geological history is to thank for the bumper crops of fossils, but they’re not the only ancient treasures to be found here.

A fast-track method of breeding disease-resistant ash trees has been developed by researchers leading efforts to conserve the species. Researchers at the John Innes Center, who have adapted the embryo ...

ST. CLOUD — Shawn Sweeney likes to think of himself as a "tree doctor," and he cares for all his little (or not so little) "tree children." It's an informal way of describing his latest passion.

PHOENIX (AZFamily) — A group from Arizona State University is working to cool down the Valley by planting trees in urban areas. The effort comes as temperatures are expected to return to the 90s this ...

The Australian government recently listed the iconic alpine ash forests of mainland Australia as an endangered ecological community, citing ongoing threats from increasingly severe, frequent bushfires ...

Walk through many forests in Indiana today, and you might not notice what is missing until you look up. Ash trees, once a common part of these woodlands, have rapidly disappeared due to the invasive ...