“…63 We come away equally impressed, however, by the need for some stronger collective thinking about new ways to see and exploit the structure of opportunities for change that are embedded in laws we already have. The Ballona wetlands litigation in California is one case in point and a case in which the technical and organizational ability of the plaintiffs to demonstrate how a development project would affect coastal ecosystems and put people in harm's way was crucial to making themselves heard and their influence felt.…”