Various: Carbon dioxide emissions from Western Canada’s oilsands are set to increase from five per cent to 16 per cent of the national total by 2020 under current plans. (Canadian Press) CBC News has obtained a government document that says reducing greenhouse gases from Western Canada’s oilsands will be much more difficult than some politicians and the industry suggest. The ministerial briefing notes, initially marked “Secret,” say that just a small percentage of the carbon dioxide …