VATICAN CITY — Pope Francis said Wednesday he will release a follow-up environmental document to the 2015 encyclical Laudato Si’ on Oct. 4, the feast of St. Francis of Assisi.

Speaking at the end of his general audience Aug. 30, the Pope said he plans “to publish an exhortation, a second Laudato Sì’,” at the end of a Vatican-supported ecumenical initiative that will run Sept. 1–Oct. 4.

The Season of Creation will begin, Pope Francis said, on Sept. 1, which is the World Day of Prayer for the Care of Creation. This year’s theme is “Let Justice and Peace Flow.”

“Let us join our Christian brothers and sisters in the commitment to care for creation as a sacred gift from the Creator,” Francis urged at his public audience.

“It is necessary to stand with the victims of environmental and climate injustice, striving to end the senseless war on our common home, which is a terrible world war,” he added. “I urge all of you to work and pray for it to abound with life once again.”

Pope Francis announced last week that he is writing a second part to his 2015 environmental encyclical Laudato Si’.

The Pope said with this new writing he is updating Laudato Si’ to cover current issues.

The Holy See Press Office director, Matteo Bruni, confirmed to CNA on Aug. 21 that “the pope is working on a letter updating Laudato Si’ with regard to the recent environmental crises.”

Laudato Si’ is the second of three encyclicals published in Pope Francis’ pontificate thus far. It was released in June 2015.

The theme of the encyclical, which means “Praise be to you,” is human ecology, a phrase first used by Pope Benedict XVI. The document addresses issues such as climate change, care for the environment, and the defense of human life and dignity. 

Pope Francis said Aug. 30 that the second part to Laudato Si’ would be the kind of papal document known as an “exhortation.”

Francis has so far published five apostolic exhortations during his pontificate, including Evangelii Gaudium and Amoris Laetitia.

The feast of St. Francis of Assisi was also the date in 2020 that Pope Francis chose to release his most recent encyclical, Fratelli Tutti, about fraternity and social friendship.