THE FOREST OF container-handling cranes that Jawaharlal Nehru Port Authority (JNPA) chairman Unmesh Sharad Wagh can see from his office in Uran, Navi Mumbai, has been overtaken in importance by another forest: of over 100,000 mangrove trees that it has developed to achieve its green goals. Mangroves protect coastlines from erosion, and JNPA has no usable shoreline with the required draft in its current location.