This misdiagnoses the problem, and as a result proposes an inadequate solution. The problem as defined by the U.N. In Agenda 21 is ‘sustainable development’, both for the developed and undeveloped world. Fossil fuels is just a byproduct of this much larger problem. The solution too is much larger than digital money. The solution will most likely come in the form of a digital environment that regulates and controls ‘sustainable development’ through digital money, but also laws, regulations, ‘smart cities’, ‘smart cars’, and other technologies. It may be impossible to fully eliminate our need for fossil fuels as they are a necessary ingredient in manufacturing steel, concrete, aluminum, and other modern materials. But we can reduce their emissions and create sustainable strategies to protect the environment.