Mariology Much has been made of the difference between the Mariology of Anglicans and that of Roman Catholics, although Anglicanism does not have an official view about these doctrines. To encourage ecumenical cooperation despite differences over other matters, the Roman Catholic and Anglican churches issued a joint statement, "Mary: Grace and Hope in Christ" (also known as the Seattle Statement) on the role of the Virgin Mary in Christianity. International Anglican-Roman Catholic Commission for Unity and Mission IARCCUM is a commission established by the Anglican Communion and the Roman Catholic Church as an official joint commission. IARCCUM exists in parallel with the Anglican-Roman Catholic International Commission, the theological commission known as ARCIC. IARCCUM's purpose is: to facilitate the development of strategies for translating the degree of spiritual communion that has been achieved into visible and practical outcomes; to promote and monitor the formal response and reception of the agreed statements of ARCIC; to strengthen relations between ARCIC and national Anglican-Roman Catholic Commissions (ARCs), and between different national ARCs, providing support and resources in order to foster an exchange of information and practice; to encourage Anglican Provinces and Roman Catholic Episcopal Conferences to establish ARC dialogues where they do not exist; to encourage Anglican and Roman Catholic bishops to develop projects and programmes of joint witness and mission in the world. In 2000, Archbishop George Carey, then Archbishop of Canterbury, and Cardinal Edward Cassidy, then president of the Vatican's Pontifical Council for Promoting Christian Unity, convoked a conference of Anglican and Roman Catholic bishops in Mississauga in Canada to discern the progress made in theological conversations since the 1960s, and whether closer co-operation could be developed between the two traditions. The result was IARCCUM, which has been meeting since 2001. In February 2007, it published the first fruit of its work, the report "Growing Together in Unity and Mission", accompanied by two commentaries. IARCCUM's work continues under the co-chairmanship of Bishop Donald Bolen and Bishop David Hamid. Dialogue strained Dialogue is strained by the developments in some provinces of the Anglican Communion, primarily concerning the ordination of women and the ordination of those in same-sex relationships as priests and, in one case, a bishop (Gene Robinson). In addition, the Second Vatican Council declaring that the Anglican churches are only "ecclesial communities", saying that: "Among those in which some Catholic traditions and institutions continue to exist, the Anglican Communion occupies a special