Environment News Service: World Council of Churches General Secretary Dr. Samuel Kobia is calling concerns about climate change "a matter of faith" and says the Christian faith community must be at the vanguard of the response to global warming. "I think as Christians we should be the ones to lead the way so that others then can follow because for us it is not just a matter of political or economic or ecological concern it is a matter of faith," Kobia said Thursday in New …