Coastal wetlands are considered key to mitigating climate change, because their plants absorb carbon from the atmosphere and store it in soil even faster than forests do. But Delaware Public Media's Sophia Schmidt reports that research at a salt marsh near Dover raises questions about how much of a carbon “sink” tidal wetlands really are, and if that’s changing as the climate warms.
The U.S. Fish and Wildlife Service is burning grassland at Delaware refuges to get rid of invasive species. Invasive species like phragmites can take over…