Hatches Harbor, Cape Cod. Photo source: ©© Lydia Mann
Waves from moderate storms, rather than violent events such as hurricanes, inflict the most loss on coastal wetlands. Globally, salt marshes are being lost to waves, changes in land use, higher sea levels, loss of sediment from upstream dams and other factors.
Many initiatives around the world now seek to protect and rebuild salt marshes. Evidence also suggests that, at least in some coastal environments, marshes can adapt to rising sea levels…