As has been mentioned here, there are carrots and sticks in this area, and you need both. A foundation of legislation is the first step. You have to have a threshold. After that, you need to create these challenge grants and fund resources like that, so that when the government values an outcome, puts the science behind it, and makes a public commitment to it, you can then challenge landowners, the public and private sectors, provinces, and others to come forward and access those funds.
You have to realize that it takes money to enact, and get the job done. But, those instruments, those approaches, are quite successful.