The application of genetic engineering to food crops is controversial, and rightly so. Critics worry that changing genetics may have harmful, unanticipated effects on food safety and the environment.

There’s an old holiday tradition in the U.S. that's become increasingly harder to celebrate: fire-roasted chestnuts. Thanks to an endemic fungus, about 4 billion American chestnut trees were killed ...

CRESSONA — Seeds lying deep inside a sleepy hillside orchard could play a crucial role in the regeneration of the embattled American chestnut tree. Early Friday morning, a team of volunteers dropped ...

Sunlight filtered through the overstory of a thick Pennsylvania forest and a few rays fell upon the long, serrated leaves of the American chestnut trees down below. The higher Mike Manes, 78, hiked, ...

Add Yahoo as a preferred source to see more of our stories on Google. There’s an old holiday tradition in the U.S. that's become increasingly harder to celebrate: fire-roasted chestnuts. Thanks to an ...

Add Yahoo as a preferred source to see more of our stories on Google. CRESSONA — Seeds lying deep inside a sleepy hillside orchard could play a crucial role in the regeneration of the embattled ...