“When the last tree is cut down, the last fish eaten, and the last stream poisoned, you will realize that you cannot eat money,” Native American saying
“Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs,” Brundtland Report
It is undeniable that our current way of life is unsustainable; If every country consumed resources and created waste at the same per person rate as the United States, we would need three to five planets to survive. Part of the problem lies in the fact that economics—the major discipline advising global and national policy—has failed to include the environment in its calculations. To rectify this problem, different methods have been proposed, so as to make predictions and come up with better ways of managing the planet’s resources without compromising the future.