There is an increasing awareness of the need to save man's environment for current and future generations, both on the part of governments and of the populace generally. This has resulted in a number of enactments, both national and international, which purport to protect the environment in a number of ways - by controlling, for instance, the release of pollutants into the atmosphere, the dumping of waste products in the sea, the killing of marine life, the export of endangered species and so on.