For conservation to be successful it is necessary to take into consideration that it is a characteristic of man that he can only be relied upon to do… - Prince Philip, Duke of Edinburgh

You can't have been here that long—you haven't got a pot belly.

It is an old cliche to say that the future is in the hands of the young. This is no longer true. The quality of life to be enjoyed or the existence to be survived by our children and future generations is in our hands now.

For example, the World Health Organization Project, designed to eradicate malaria from Sri Lanka in the postwar years, achieved its purpose. But the problem today is that Sri Lanka must feed three times as many mouths, find three times as many jobs, provide three times the housing, energy, schools, hospitals and land for settlement in order to maintain the same standards. Little wonder the natural environment and wildlife in Sri Lanka has suffered. The fact [is] ... that the best-intentioned aid programs are at least partially responsible for the problems.
The industrial revolution sparked the scientific revolution and brought in its wake better public hygiene, better medical care and yet more efficient agriculture. The consequence was a population explosion which still continues today.
The sad fact is that, instead of the same number of people being very much better off, more than twice as many people are just as badly off as they were before. Unfortunately all this well-intentioned development has resulted in an ecological disaster of immense proportions.