Biologists say they are beginning to see positive signs in the effort to bring back a species of migratory shore birds along the Delaware Bay, but the fear is the gulf oil spill may change things.

Red Knot and Horseshoecrab, originally uploaded by b52starr. In the early 1960s, Rachel Carson wrote “Silent Spring,” an important book that helped increase public concern for the environment. The work was most directly about the dangers and effects of irresponsible, uninformed pesticide use. Carson’s broader message — the one that resonated with the public around [...]