William A. Powell

A man, bundled up against the cold, walks past a street vendor's chestnuts as they roast in front of the Metropolitan Museum of Art in New York.

How to make sure those are American chestnuts roasting on your fire

December 24, 2014Science

American chestnut trees are virtually extinct thanks to a blight that ravaged the population in the 20th century. But scientists have been working to create a blight-resistant version of the tree, and they say they’ve finally succeeded.