Wealthy people all over the world are getting ready right now. Fortified houses, compounds, survival structures, large agricultural properties, etc.
They have no intention to give up what they have and could care less if a couple of billion poor people don't make it as long as they do.
About 2006 on the blog TOD we were posting about this type of activity and one poster indicated he worked for a firm which was building a series of compounds co-located in Patagonia for several ultra wealthy individuals who had purchased large ranch/farm properties in a very rural area. The houses being built would withstand military type assaults and had gun emplacements built into them. Housing for security personnel and their families was included. Those Blackwater guys are going to be taken care of for their services.
This this link out for current offerings. It will blow your mind. They are building in some cases structures they expect people to be able to survive in for decades.
http://www.hardenedstructures.com/fortified-homes.php