To the 10 th Assembly of the World Council of Churches in Busan, Republic of Korea (30 October to 8 November 2013) we owe two particularly important doc- uments which are relevant to the problem of ecological crisis and endangered hu- man environment. They are: the convergence text The Church: Towards a Com- mon Vision and Unity Statement. The first one is a result of many years’ work of the Commission Faith and Order. In both documents one can see a profound preoccupation of Christian Churches about the integrity of the whole creation of God. As creation has been misused, Christians are not allowed to remain indiffer- ent to this fact. We truly live today “in the tension between the profoundest hope and the deepest despair”. To this urgent...