The balance of nature is very dedicated and easily upset.
Humans must live in harmony with nature in order o survive.
Mankind is severely abusing the environment.
Mankind was created to rule over the rest of nature.
Plants and animals exist primarily to be used by humans.
We are approaching the limit oft he number of people the earth can support.
To maintain a healthy economy, we will have to develop a steady-state economy where industrial growth is controlled.
The earth is like a spaceship with only limited room and resources.
There are limits to growth beyond which our industrialized society cannot expand.