FORT MCMURRAY, Alta. -- South African Archbishop Desmond Tutu is scheduled to appear at a conference in Fort McMurray to discuss aboriginal treaties and the oilsands.

The Nobel laureate, who has taken strong stands on climate change and against projects such as the Keystone XL pipeline, will appear with other industry and political leaders at the two-day event that begins May 31.

The conference is being sponsored the Athabasca Chipewyan First Nation and a Toronto law firm specializing in aboriginal and environmental law.

The speakers list includes James Carter, former president of Syncrude Canada.

Athabasca Chipewyan spokeswoman Eriel Deranger says the band hopes Tutu will address the moral dimension of energy development as the world faces significant choices on climate change.