Lafarge has registered with the Department of Environment for an environmental assessment to burn scrap tires as fuel at the Brookfield Cement Plant. If approved the burning of tires for fuel will begin this year. The proposal is to burn 450,000 tires a year or 6,000 tonnes; this would represent 15% of fuel used in the cement kiln.  Their position is that burning tires instead of coal can reduce greenhouse gas and NOx emissions.