Unless we can transition to the steady state economy of Herman Daly, a depression four times worse than the 1930s is predicted, worldwide, for ten times as long. Economic effects are the first from overpopulation, which lead to the migrations we have seen for the past 25 years, increasing. Peak oil will certainly help bring on the abject poverty and suffering. 20 years until then sounds about right, but it could start much sooner. Reduction in burning will decrease the 10 to 20% dimming of particulates, increasing the apparent effects of GW. Decrease in incomes will decrease taxes, and programs like the reported Shield, or Albedo, Project will also become unaffordable even as they become more necessary, and the jet fuel runs out. For more visit:
The "HOLMESTEAD", Georgian Bay, Huronia, Ontario, Canada