The Pontifical Academy of Social Sciences prepared the following statement on climate change. It covers a wide range of associated sustainability issues. Various suggestions for societal interventions are also included within the statement.
A Statement of the United States Conference of Catholic Bishops was issued on June 15, 2001. This document covers a multitude of current environmental problems and the resulting negative impact on populations around the world - especially with regard to indigent populations. It stressed the connectivity of human behavior and it's impact on the planet.
This circular Lenten Call for ‘Carbon Fast’, addressed to the Bishops of the Churches in South India, was provided on February 8, 2017 in Chennai, India, at the Church of South India Synod Secretariat. The circular emphasizes the desecration of the Earth as sinful. However, the call for a Carbon Fast can be considered one way to repent.
Below is a section of the introduction from A Bishops’ Letter about the Climate, which covers a multitude of critical environmental issues, from the 2014 Bishops' conference:
"We have lived with reports and forecasts of climate change since the 1980s. Our climate is the result of the interaction of complex systems and there is often a great distance between cause and effect in terms of both space and time. There are uncertainties and a lack of clarity. However, the knowledge we possess today does not allow us to postpone until tomorrow
what needs to be done now. Our human climate impact must decrease for the sake of the earth, for the sake of the world that God so loves that God gave us Jesus Christ."
The Anglican Communion Environmental Network addressed the United Nations Framework Convention on Climate Change (UNFCCC)
Conference Of Parties (COP) Meetings, the Fifteenth Session, held in Copenhagen, Denmark in December 2009. They lament the consequences of environmental human footprints, some of which include the lack of drinkable water in various parts of the world, the increased difficulty to grow crops due to the water shortages, rampant consumerism, and subsidies for fossil fuels.