Health Sciences homework help

9/17/2008 Prepared by Dr. What keeps us alive? What is an environmentally sustainable society? How fast is the human population growing? What is the difference between economic growth, economic development, and environmentally sustainable economic development? Prepared by Dr. What are the harmful environmental effects of poverty and affluence? What three major human cultural changes have taken place since humans arrived? What are the four scientific principles of sustainability and how can we use them and shared visions to build more environmentally sustainable and just societies during this century?