30 Nobel laureates will also take part in the event. Live streaming on ANSA.it from 16pm.

"We want to reach the goal of one billion signatures," says Cardinal Mauro Gambetti. The event will be broadcast worldwide on the Vatican media (from 16 pm), RAI1 (from 17 pm to 00.18 pm) and in streaming on the social platforms of the "Fondazione Fratelli tutti" The meeting will be held in St. Peter's Square and at the same time in eight other squares around the world.