CCC 408 The consequences of original sin and of all men’s personal sins put the world as a whole in the sinful condition aptly described in St. John’s expression, “the sin of the world”.1 This expression can also refer to the negative influence exerted on people by communal situations and social structures that are the fruit of men’s sins.2
1 Jn 1:29.
2 Cf. John Paul II, RP 16.