The Sustainable development can merely happen without a spiritual parameter.
We are most certainly living in a period of time of the greatest importance for human survival in the twenty-first century. Even for non-environmental interested person words and terms such as global warming, sustainable development and sustainability has become mainstream; sustainability, for example, is today one of the most-used words in the English vocabulary.
I guess the lack of understanding of what of lies within a sustainable philosophy, corporate ethics, and green thinking. The core of the basic values of business ethics and a sustainable approach are missing in traditional western philosophies, and that it is time to Re-thinking Environment and Development in the Twenty-first Century