Bartholomew I is the current Ecumenical Patriarch of Constantinople, a position he has held since 1991. He is considered the spiritual leader of the Eastern Orthodox Church, which includes millions of followers worldwide. His role involves promoting unity among Orthodox Christians and engaging in interfaith dialogue. Born in 1940 in Turkey, Bartholomew I was educated in theology and became a bishop before ascending to the patriarchate. He is known for his environmental advocacy and efforts to address global issues, including climate change, reflecting the teachings of the Eastern Orthodox Church.