Definitions for the vocabulary from the book ( Sustaining the Earth by G. Tyler Miller) 1- Solar capital 2- Natural captial 3- GDP 4- Per Capita Ecological Footprint 5- Environmentally sustainable society 6- Economic Development 7- Environmentally Sustainable Economic Development 8- Sustainable Yield 9- Tragedy of the Commons 10- Pollution 11- Point sources 12- Nonpoint Sources 13- Affluenza 14- Environmental Worldview 16- Four Principles of Sustainability ...