The meaning of the word ¿sustainability¿ has become greatly extended and distorted. The first section of this book, ¿RISE AND FALL OF THE CONCEPT SUSTAINABILITY¿, examines why this happened and what is its correct meaning. The ¿three legs¿ approach is rejected. Sustainability is discussed on different levels¿global, national, local, industrial, and corporate. Environmental policy of the E.U. is also examined, as a level of regional integration. Sustainability requirements in the different industries are surveyed. Emphasis is placed on the difference between environmental protection and sustainability. To understand the evolution of the concept of sustainability in the private sector, it is essential to understand what the concept meant when decisions were being made to move us in this direction. The second section of this book, ¿IMPROVING THE PATH TOWARD ENVIRONMENTAL SUSTAINABILITY¿, discusses what was learned during our efforts toward environmental sustainability. It examines errors made in applying what we have learned. The challenge facing us is examined from several perspectives and prerequisites are proposed for organizations intent on becoming environmentally sustainable.