Startup companies bet locally sourced fish, produced in self-sustaining habitats, can win over city-dwellers

Cities across the nation are building schools on contaminated ground, igniting grassroots opposition and straining already slashed school budgets with the costs of needed remediation. The practice is much more common that most people realize, and not just in the inner city. According to one study, one out of every seven rural school sites in California had to be cleaned up either before or after construction. School districts defend their use of industrial sites as safe and as a necessary step in redeveloping down-and-out neighborhoods. Yet parents and environmentalists worry that current regulations do little to protect the school children and may contribute to health, learning and behavior problem.