Are Canada's green corporate subsidies a new race to the bottom or a path to the top?

The federal Liberals have made it clear that Canada’s road to a greener economy will be paved with billions of dollars in corporate subsidies. Proponents say these may be necessary for Canada to attract investment, especially in competition with the United States — but others are expressing doubts that the hefty handouts will be effective or efficient in the long run.
Source: ctv business
Are Canada’s green corporate subsidies a new race to the bottom or a path to the top?