He conflates rates of growth with actual numbers. It is true that the rate of population growth worldwide has declined since 1970. However, the base population has grown by more than three billion; thus we currently add 80 million or more people to the planet each year. That is hardly defusing population growth!
Still, religious peacebuilding is a developing concept. Most of the literature regarding religion and peacebuilding is in the form of case studies, that is stories of specific events, groups, and individuals.
Definition: Inner Peace. Peace is a state of harmony, the absence of hostility. This term is applied to describe a cessation of violent international conflict; in this international context, peace is the opposite of war. Peace can also describe a relationship between any parties characterized by respect, justice, and goodwill.