they're all part of a national organization of faith leaders known as interfaith power and light or iplich was founded by reverend sally bingham. an episcopal priest. >> we started out asking congregations to respond to climate change. as more and more religions got involved, we realized what we were actually doing was bringing religions together where they could all agree on something. there were attending the bahai, mormon, catholic, evangelicals, prestant, jews, muslims, all agreeing with each other, we are the stewards of creation. >> there are now over 14,000 houses of worship in 40 states connected to ipl. places like shalom congregation in maryland. the rabbi says religion is deepening his congregation's concern for the environment. >>ultimately, love of the creator and love of that which god has created are one and the same. if you don't love creation, what does it mean to say that you love god, who so loved creation? >> sara is the director of a washington-area group called green muslims. made up of young professionals like herself. she's an urban planner. >> it's an issue that