The energy-population conundrum and its possible solution
  Oil prices above $100/barrel values have proven unaffordable for the world economy, while lower prices have proven unaffordable for unconventional oil sources, resulting in a frantic price swing since 2007-2008. We identify and combine for the first time the competing dynamics of oil price, economic growth and extraction costs in a single model aiming to evaluate the near-term consequences of these dynamics onto forthcoming oil supply. Policies able to cope with the consequences of the resulting energy scenario are suggested in the conclusions. 
Francesco Meneguzzo, Rosaria Ciriminna, Lorenzo Albanese, Mario   Pagliaro
physics.soc-ph