In the early 20th century, a blight fungus wiped out most of the 4 billion American chestnut trees on the eastern seaboard. The loss was ecologically devastating. Pod reporter Emily Kwong tells us how scientists are trying to resurrect the American chestnut tree — and recent controversy over a plan to plant genetically modified chestnuts in the wild.Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)
