Since 1983 The John Main Seminar has been the annual international gathering of The WCCM. In 2012, for the first time, it was held in Latin America - in Brazil - and addressed the spiritual implications of the global environmental crisis. Leonardo Boff and Frei Betto OP were the speakers. The Seminar was preceded by a retreat led by Laurence Freeman OSB. After the Seminar a group of the participants made a pilgrimage to the Iguacu Falls.