Natural Law and Possession According to the Catholic Church: Pope Paul VI (1967)

...every man has the right to glean what he needs from the earth. The recent Council [Vatican II] reiterated this truth: "God intended the earth and everything in it for the use of all human beings and peoples. Thus, under the leadership of justice and in the company of charity, created goods should flow fairly to all."
All other rights, whatever they may be, including the rights of property and free trade, are to be subordinated to this principle.

Populorum Progressio, encyclical, On the Development of Peoples,Paul VI, March 26, 1967, 22