I don't think the whole planet will be destroyed in 2012, but the infrastructure of the modern world that man has created could very well be. The world that is based on greed, exclusivity, avarice, and violence will have to give way to something better.
And I reckon that a new order will also make life easier for naturists as people become more earth-centred and start living up to their own philosophies based on their experiences in life rather than old organised religious dogmas.
Books like "Future Shock" and "Celestine Prophecy" are also great futurist stories that I recommend others to read if they are interested in what could lie ahead for us.