The gradual depletion of the ozone layer and the related "greenhouse effect" has now reached crisis proportions as a consequence of industrial growth, massive urban concentrations and vastly increased energy needs. Industrial waste, the burning of fossil fuels, unrestricted deforestation, the use of certain types of herbicides, coolants and propellants: all of these are known to harm the atmosphere and environment.
Pope John Paul IIIn the past, it was possible to destroy a village, a town, a region, even a country. Now it is the whole planet that has come under threat. This fact should compel everyone to face a basic moral consideration; from now on, it is only through a conscious choice and then deliberate policy that humanity will survive.
Pope John Paul IIEvery effort to make society sensitive to the importance of the family, is a great service to humanity.
Pope John Paul III plead with you--never, ever give up on hope, never doubt, never tire, and never become discouraged. Be not afraid.
Pope John Paul II