One important strategy for addressing climate change is planting trees. They absorb carbon dioxide from the atmosphere and ...

University of Maryland Atmospheric and Oceanic Science Professor Ning Zeng holds the 3,775-year-old log that is the subject of a new study in Science. Credit must be given to the creator.

“This accidental discovery really gave a critical data point,” said Ning Zeng, a University of Maryland climate scientist whose team unearthed the ancient chunk of wood. “It’s a single ...