The Alliance of Religions and Conservation (ARC) was a United Kingdom-based international organisation founded by Prince Philip, in 1995.

ARC was a secular body whose aim was to assist the major religions of the world to develop environmental programmes based on their own core teachings, beliefs and practices.

In 2007 it joined with the United Nations Development Programme (UNDP) to develop a significant and innovative programme to work with the world’s major faiths to address issues of global warming and the natural environment through the development of faith-based “Long Term Commitments for a Living Planet” – pledges of faith action on the environment aimed at achieving generational change.

At the time UNDP Assistant Secretary-General Olav Kjørven described this coming together of religion and conservation as: “potentially the biggest civil society movement on climate change in history” and “the biggest mobilisation of people and communities that we have ever seen on this issue”.

[2][3] In September 2012, as a result of support and co-ordination by ARC, 27 faith groups from sub-Saharan Africa presented their Long-Term Commitments for a Living Planet at an ARC-organised meeting in Nairobi, Kenya.