Buddhism is interested in theory only so far as it is useful for practice. The theory of dependent co-arising has this quality and can be applied in understanding the world, our present environment, as an ecosystem. This theory and its other related teachings should be taught through a system of good education whose task is to understand this present world in which we live and make our choices. In that educational endeavor, the first step must be to urge people reflect on how the present ways of life are simply not in our own self-interest, let alone in the interest of millions of other living beings and future generations. The next step must be to challenge the social structures such as education, religion, and economics that sustain and promote values that bind us to the ecologically destructive results of our actions. These steps must begin with an inner practice of self-transformation. Learning, reflection and meditation would uproot the evil tendencies of the mind that are destructive to the environment. Promotion of Buddhist values such as simplicity, balance, equanimity, compassion and understanding must be done so that it will bring inwardly a transformation of the mind and outwardly a transformation of the world. In Bhikkhu Bodhi’s words, “With its philosophic insight into the interconnectedness and thoroughgoing interdependence of all conditioned things, with its thesis that happiness is to be found through the restraint of desire in a life of contentment rather than through the proliferation of desire, with its goal of enlightenment through renunciation and contemplation and its ethic of non-injury and boundless loving-kindness for al beings, Buddhism provides all the essential elements for a relationship to the natural world characterized by respect, humility, care and compassion.” That is the kind of relationship that we must develop with reference to the nature. The philosophy behind this system is: live by letting others to live. According to this system, the best way to deal with the present environmental issues is by letting this planet earth to work in its own natural ways as much as possible