Today it could be argued that human beings daily act against our own self-interest. How? Biologist Paul Ehrlich and fellow scientists tell us we are expanding our population and economy beyond the Earth's carrying capacity– at our peril. Why do we insist on continuing? Humanity in the last few hundred years has become the dominant animal on this planet. We are changing...the atmosphere to the point where we’re threatening our very sustainability, we are now mobilizing most minerals more rapidly…
