The goal: The conservation of ecosystems.
Legal obligation in the world - any voluntary attitude of companies would never be sufficient to ensure the goal.
In Brazil and in several countries, environmental legislation governing the disposal of effluents on water bodies by limiting the pollution load released in accordance with the use type set for the receiving body of water (water class).
In addition, international financing of projects like the World Bank, adopt its own rules to limit pollution caused by industry funding.
Source: PUC Rio.