This article, Turning Inspiration Into Action, summarizes really well the steps needed to change our our own behaviour. It also works really well when trying to drive change team in a team, department, division, etc.
Commit publicly, book the time and use it, ask people to hold you accountable, break big tasks into small ones, design regular reminders, examine why you avoid it when it happens.
I’d only add one more thing: celebrate successes along the way.
There, now go change the world.