Beyond that, better building code regulation. There are advancements today that reduce environmental impact that get passed over because minimizing cost is key in new developments. For example, greywater recycling switched from general-con to general-pro a little over a decade ago and is currently floundering in usability limbo. The problems that still exist with the system will probably only be resolved once the economic inertia of adoption sets in but that will never happen as long as real estate developers neglect the quality of their construction projects.
I also mentioned short span capitalism, and by that I'm referencing innate lifespans being built into products. Removing the incentive to reduce lifespan would help a great deal but this would require some drastic economic changes. Barring revolution, that will be a slow burn. UBI and automation will force society to consider changing that status quo. Something as simple as changing packaging in the hospitality and food industries can also have an immediate impact which largely doesn't alter someone's daily behaviour.
Government encouragement of utilizing renewable energy would also go a long way. It incentivizes development companies to construct buildings that have close to zero impact on the environment when it comes to maintenance and operation. Edmonton in Alberta has a couple buildings that boast this, but in general there are a lot of things that can be encouraged that would reduce operational footprint during the transition from waste to neutrality. The construction of solar panels, for example, has an initial environmental impact but reduces the footprint of energy generation afterwards. ROI is improving every year and even in cloudy cold climates you can reduce the need for drawing from dirty energy sources by a sizable percentage.
I'd love to see more attention being given to urban arcology (not the sci-fi envisioning). Greenifying urban spaces will help offset environmental costs and improve general health, both things that don't require any lifestyle restrictions on the part of the individual. The
+15 system in Calgary is a good example of easing density woes. With GMO technology improving exponentially, the opportunity to cover city buildings in plant life is also one that should be considered. Urban-safe vegetation would reduce noise and air pollution, again improve the health of the general population, and provide viable habitats for insects (which will become increasingly important as pesticides and environmental woes eliminate wide-spanning populations of insects that help us survive).
You can argue that most of these changes wouldn't allow individuals to act as they please, and you're right. What they would do is pressure society to naturally steer itself towards that path. I don't trust humans, especially not to make the right call in a crisis. It's why I don't recognize self-flagellation to be a viable option for anyone except the fanatic. Inertia is a powerful social mechanism and builds upon itself if properly applied. Encouraging society to be passively aware of the environment will help any effort towards innovation and progressing towards a functionally neutral footprint. It's true that forsaking many modern amenities would reduce your footprint, and it's true that everyone else following suit would help a great deal, but it's not viable in application.