She was ordained at
Hans Egede Church, the cathedral of Greenland, in the presence of
Queen Margrethe II. She was the second woman to become a bishop in the Danish Lutheran church, and its second
Inuk bishop. Petersen is an outspoken advocate for
climate justice. She worked closely with the Greenland's government to ensure the law would allow same-sex couples to marry in churches and other religious buildings. She retired in December 2020. ==References==