Pope John Paul II and Patriarch Bartholomew I of Constantinople. “We Are Still Betraying the Mandate God Has Given Us.” (June 10, 2002).
Common Declaration of Pope Francis and the Ecumenical Patriarch Bartholomew I
http://www.news.va/en/news/common-declaration-signed-by-pope-francis-and-the
“Ecumenical Prayer for the Conservation of Creation.” Sermon by Ecumenical Patriarch Bartholomew (December 3, 2015)