Of course, transfers would be possible. Still, I know that billions of dollars were spent on urban infrastructure. That was at the federal, provincial and municipal levels.
It would be possible to design a similar project, one that would aim not to restore water and sewer lines, but to conserve the city's remaining biodiversity, which is highly threatened. Degraded ecosystems could also be restored.
I don't want to know where the money would come from, but I have the impression that these resources could be freed up to go in this direction. That could lead to a positive economic impact, namely job creation.