The sad thing is that Canada is actually in one of the best places to make it's individual targets compared to most other countries. We're a rich nation with plentiful resources and all our needs are met domestically. Our major sources of greenhouse emissions are well known and clearly defined. They are also things that all have existing solutions to.
Even if complete elimination isn't possible, at least doing enough to reach our climate goals should've been easy. Heating and fossil fuel production account for more than 30% of our CO2 emissions, both things that could be replaced with electricity from clean sources like nuclear.