Stockholm, Sweden - Hundreds of representatives of the world's leading religions are in Sweden for a summit on climate change - said to be the first of its kind.
The two-day conference involves Christians, Muslims, Jews, Chinese Daoists and a native American representative, among others.
They aim to set a manifesto to encourage far-reaching policy goals from the United Nations.
They also want to encourage personal commitments from people of faith.
BBC religious affairs correspondent Christopher Landau, at the meeting convened by the archbishop of Sweden in Uppsala, says the lack of enthusiasm for action on climate change in some religious quarters is being tackled head on by the meeting.
The Anglican Bishop of London, Richard Chartres, says the religious community must speak out.
"Here is a major, human emergency.
"Many of our constituencies regard this still as a peripheral second-order issue - it's got to be moved up the agenda."