Of course $7500 isn't nearly enough for pulling someone out of homelessness.
To be honest, I think it's far more efficient to give the homeless proper homes with locking doors and a respectable level of privacy as well as access to clean water and some sort of minimum level of food (like an infinite supply of rolled oats). It doesn't need to be a big home, even something little better than a capsule hotel room would be enough.
The homeless stay homeless because nobody can pull themselves together if they're constantly stressed trying to figure out how to even reach the next day. It's even worse when you don't have access to a shower to clean yourself up to be presentable enough to get through an interview at even the most unwanted jobs.
It's the single biggest reason why mental illness is so rampant amongst the homeless and few ever repair their lives.
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.