I am afraid that we cannot expect that majority of people will voluntarily change their mind. Heavy taxation will do the job, but if everything will be more expensive - energy, travelling, food, transportation etc... that does not sound like paradise for 'average Joe' (=person who does not care about long-term outcomes...).
Who will vote policymaker which will promise that everything will be more expensive ? :(
What do you think about hot-house earth scenarios ?