The meaning of Ecology is ”the science about all living beings in relation to their environment”. The ecosystem is the complex connections between plants, animals, people, micro-organisms, water, wind, minerals, and so on. The ecological ground rules are:
- Everything exists in conjunction with each other
- Everything is a cycle of exchange (there is no final)
- Nature knows best
- There are no free lunches
(Barry Commoner in The Circle Closes)