“As the price of oil rose earlier this decade, this capital city did as well. Glass skyscrapers soared above the rubble of a 27-year civil war. American pop stars such as Mariah Carey were flown in to play private concerts. Luanda would become, its government announced, ‘a new Dubai.'” But now oil prices have crashed, and Angola is in crisis. The geopolitical and economic impact of the shift away from foreign fossil fuels will be felt in a big way in many countries. It could reshape our world over the next decade or two.