摘要: |
Sustainability is a complex issue, but there are some very simple and direct truths about it. The world's population is nearly 8 billion people; while the population growth rate has slowed in recent years, the earths population continues to rise. There are simply not sufficient resources to provide for the number of people on the planet if we continue our historical patterns of consumption. Throughout the course of modern history, humans have taken resources from the ground, seas and Earths crust (lumber, oil, minerals, fish, animals, etc.), used what we wanted, threw away the waste (regularly contaminating water and land) and continued to devour our planet at an unsustainable rate (Figure 1). Harari (2015) provides an excellent overview of the near-constant environmental catastrophes, destruction of ecosystems, extinction of other species and generally awful things humanity has done to the earth. If humankind continues with the behaviors we have exhibited, we will destroy the planet to the extent that it will not support human life-certainly not in the numbers we now have. |