J.K. Donnelly, D.R. Pendergast - 1999 May 30: A proposal to use CANDU reactors as heat sources that will allow tar sand oil to be extracted much more cleanly. Given Canada's commitment to reduce carbon dioxide emissions, cleaner methods must be used in the tar sands oil industry. The Alberta tar sands contain enough oil to supply the world economy at current usage rates for a century or more. However, the methods presently used to extract this oil release too much carbon dioxide. This paper proposes a better procedure, powered by a CANDU reactor, that allows the oil to be extracted cleanly, and also creates useful by-products such as zirconium and heavy water.