Certain elements of today's ecological crisis reveal its moral character. First among these is the indiscriminate application of advances in science and technology. Many recent discoveries have brought undeniable benefits to humanity. Indeed, they demonstrate the nobility of the human vocation to participate responsibly in God's creative action in the world. Unfortunately, it is now clear that the application of these discoveries in the fields of industry and agriculture have produced harmful long-term effects.
Pope John Paul IIYes, the South-becoming always poorer-and the North-becoming always richer ...Richer, too in the resources of weapons with which the superpowers and blocs can mutually threaten each other. In the light of Christ's words (Mt. 25), this poor South will judge the rich North. And the poor people and poor nations-poor in different ways, not only lacking food, but also deprived of freedom and other human right-will judge those people who take these goods away from them, amassing to themselves the imperialist monopoly and political supremacy at the expense of others.
Pope John Paul IIOur future on this planet, exposed as it is to nuclear annihilation, depends one one single factor: humanity must make a moral about-face.
Pope John Paul IIIf humanity today succeeds in combining the new scientific capacities with a strong ethical dimension, it will certainly be able to promote the environment as a home and a resource for...all...and will be able to eliminate the causes of pollution and to guarantee adequate conditions of hygiene and health for small groups as well as for vast human settlements.
Pope John Paul II