Have Sulphur Diozide emissions changed at all?
Initiated in 1985, the Eastern Canada Acid Rain program committed Canada to cap SO2 emissions in the seven provinces from Manitoba eastward at 2.3 million tonnes by 1994, a 40% reduction from 1980 levels. By 1994, all seven provinces had achieved or exceeded their targets. In 1997, emissions in eastern Canada totalled just 1.75 million tonnes 24% below the 2.3-million tonne cap and a 54% reduction from 1980 levels.