The world's first boardwalk was nailed down at the Jersey Shore in 1870 to solve the nuisance of sand being tracked into hotels. Now boardwalks themselves are the problem in some Shore towns. Plans to redo the fabled boards of Wildwood and Ocean City this fall have environmentalists and activists fighting local officials over the wood for the projects. In bid specifications for the work, both Cape May County towns have requested wood from the ipe, a tropical tree that grows in Central and South American rainforests, fragile regions some environmental groups argue are being ravaged by unscrupulous loggers. The...