Countries that depend too heavily on unsustainable gas and oil to power their economies are facing a double whammy of dwindling supplies and plummeting demand as renewables increasingly replace fossil fuels. Adding to their woes, many of these nations are located in parts of the world that are likely to become unliveable for months at a time due to climate change. As the proverbial begins to hit the fan, here are 10 gas and oil-rich countries looking forward to an uncertain future.