"Given that fossil fuel subsidies in Canada may be as high as $3.3 Billion per year"
Maybe , but.....
Ontario residents  alone paid $6.8 billion in federal and provincial taxes. Canadians as a whole paid over $16.6 billion. .That $3.3 billion isn't a subsidy , it's a investment......lol and a pretty good one.
see:17th Annual Gas Tax Honesty Reports page 18
Canadian Taxpayers Federation
May 14th, 2015 @ http://www.taxpayer.com/media/GTHD-Report-2015.pdf