Renewable coal on the horizon

Coal fueled the Industrial Revolution, but it took eons to form. Now, a team of researchers at the University of Minnesota Duluth has introduced what might be called "instant coal": an energy-dense biofuel made from wood ...

Cities throw shade at rising heat

Rudy Lane is a two-lane road that curves through the leafy suburb of Windy Hills east of Louisville, Ky. Broadway is a main drag downtown where the federal and state courthouses bump up against the 1920s-era Brown Hotel.

Spread by trade and climate, bugs butcher America's forests

In a towering forest of centuries-old eastern hemlocks, it's easy to miss one of the tree's nemeses. No larger than a speck of pepper, the Hemlock woolly adelgid spends its life on the underside of needles sucking sap, eventually ...

Geneticists on cutting edge of effort to save ash trees

When Kim Steiner created an ash plantation on the edge of Penn State's University Park campus in 1978, few Americans thought about "climate change," no one had heard of the emerald ash borer, and the Yankees beat the Dodgers ...

New warning over spread of ash dieback

The ash dieback fungus could spread more quickly and affect more trees than previously expected, according to research at the University of Exeter.

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