Looked at in that light it may well turn out that money spent on proper pollution control, urban and rural planning and the control of exploitation of wild stocks of plants or animals on land and in the sea, is the less expensive alternative in the long run... The conservation of nature, the proper care for the human environment and a general concern for the long-term future of the whole of our planet are absolutely vital if future generations are to have a chance to enjoy their existence on this earth.