Actually it's brought up in a lot of discussions..

We emit 2% of land based emissions .. but we control 6% of the planets landmass and a whopping 11-12% of it's Carbon offsets..

Even if we were to buy in to the entire argument Canada would still be a net contributor to the health of the Planet based upon all factors... we just can't get around that pesky per capita argument with under 40 Million people.