It seems that every time mankind is given a lot of energy, we go out and wreck something with it.

It is absolutely imperative that we protect, preserve and pass on this genetic heritage for man and every other living thing in as good a condition as we received it.

We assume that everything's becoming more efficient, and in an immediate sense that's true our lives are better in many ways. But that improvement has been gained through a massively inefficient use of natural resources.

Unless we keep this planet healthy, everything else is for naught.

Population, when unchecked, goes on doubling itself every 25 years or increases in a geometrical ratio.