Fred Wurster’s favorite time to walk through the Great Dismal Swamp is at dusk. Pushing through thick vegetation and swatting away mosquitoes, he gets to a section of this 113,000-acre national wildlife refuge that was repeatedly burned by fires.  Wurster, a hydrologist with the U.S. Fish and Wildlife Service, spent a decade building small dams … Continue reading Virginia Once Drained and Dried Peatlands, but Now Eyes Them as Carbon Sinks