The idea of environmental sustainability is to leave the Earth in as good or better shape for future
generations than we found it for ourselves.
By a definition, human activity is only environmentally sustainable when it can be performed or maintained indefinitely without depleting natural resources or
degrading the natural environment.
-Resource consumption would be minimal
-Materials consumed would be made ENTIRELY of 100% post-consumer recycled materials or
from renewable resources (which were harvested without harm to the environment and without
depletion of the resource base)
-Recycling of waste streams would be 100%
-Energy would be conserved and energy supplies would be ENTIRELY renewable and
non-polluting (solar thermal and electric, wind power, biomass, etc.)