Rev. William G. Sinkford, President, Unitarian Universalist Association
Unitarian Universalists believe that we are all part of the interdependent web of existence, and so our personal choices affect all of creation. Ours are the only hands on earth to do the work of salvation, and we cannot relinquish responsibility for the fate of our planet. Unchecked population growth is a threat to environmental sustainability, but it is also a threat to the economic health of communities, families, and individuals. Persons in the developed world have more rights and resources for making responsible reproductive choices, and we need to ensure that all people have the same freedoms.
Sir David Attenborough, author of The Life of Mammals.
Mankind is looking for food not just on this planet but on others. Perhaps the time has now come to put that process into reverse. Instead of controlling the environment for the benefit of the population, maybe we should control the population to ensure the survival of our environment.
Garrett Hardin, author of Exploring New Ethics for Survival.
For too long have we supposed that technology would solve the "population problem." It won't. I first became fully aware of this hard truth when I wrote my essay "The Tragedy of the commons," ... Never have I found anything so difficult to work into shape. I wrote at least seven significantly different versions before resting content with this one, ... . It was obvious that the internal resistance to what I found myself saying was terrific. As a scientist I wanted to find a scientific solution; but reason inexorably led me to conclude that the population problem could not possibly be solved without repudiating certain ethical beliefs and altering some of the political and economic arrangements of contemporary society.