Ilia Delio is a theologian and writer who is interested in the intersection of faith and science. She is a Franciscan sister.

Todd Daly is an associate professor of theology and ethics at Urbana Theological Seminary in Champaign, Ill. His work on Christian bioethics includes research into transhumanism.

Cardinal John Olorunfemi Onaiyekan is the Metropolitan Archbishop of Abuja, Nigeria. He took part in a 2018 conference on religion and the environment hosted by Orthodox Ecumenical Patriarch Bartholomew I of Constantinople.

Jane Mellett is a parish pastoral worker in the Archdiocese of Dublin. In 2018, she tweeted every line of Laudato Si’ to President Donald Trump to protest his environmental policies.

The Rev. Robert “Bud” Grant is an environmental theology professor and Catholic priest at St. Ambrose University in Davenport, Iowa.

The Rev. Ambrose Carroll is co-founder of Green the Church and pastor of The Church by the Side of the Road in Berkeley, Calif.

The Rev. David Nichols is the pastor of Mount Tabor Lutheran Church in Salt Lake City. He helped launch the Faith, Ethics and Science Roundtable, which brings together religious leaders and scholars for monthly discussions.