Pollution regulations help Chesapeake Bay seagrass rebound
The bay’s nitrogen concentrations have dropped 23 percent since 1984
![seagrass](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/03/030218_lh_seagrass_feat.jpg?fit=860%2C460&ssl=1)
LUSH LAWNS Once dwindling seagrasses and other underwater plants in the Chesapeake Bay have rebounded in recent years, providing important habitat for animals such as this blue crab.
Jay Fleming