According to Herman Daly, an early pioneer in the sustainability movement, sustainability means three things:
1) For renewable resources, the rate of harvest should not exceed the rate of regeneration;
2) for pollution, the rates of waste generation should not exceed the assimilation capacity of the environment (sustainable waste disposal) and
3) for nonrenewable resources, the depletion of the nonrenewable resources (that is, fossil fuels) should require comparable development of renewable substitutes for that resource.
Achieving such sustainability will enable the Earth to continue to support life. Thus, teaching sustainability is common sense. It is our responsibility; it is not a “plot” to brainwash students.