Finance problem 1: the pensions funds will collapse. Also, the fact that the private sector is based on stocks so much, any big market fluctuation will affect your pension. If you want to retire during a recession, well, to bad

Finance problem 2: the energy network must be completly change. We cannot support burning fossile fuels so much time. When the stocks will be finished, then it will be a big shock, followed by big finance problems in all industries connected with oil (car industry, airplanes, plastics, etc)

Finance problem 3: living on credit is un-sustainable. US citizens are in debt. The nation is in huge debt. The world in in debt. Everything must be leverage.

So, these 3 crisis will follow shortly. Hopefully we will not have other types of disasters, that will generate by themselves crisis (tsunami, meteor, terrorist attack, etc)