RE:Understanding the Future of Fossil Fuel Consumption Worst case scenario is if the car manufacutring companies particularly ones HQed in USA, Japan, EU, UK and Korea start to get backlash early from producing new ICE vehicles and cut the production of them later this decade maybe 2026/2027. I could see the public start to get loud about it being unnecessary if all the infrastructure exists in the developed world then they will start to get on the car companies case and might eventually bow to pressure. That could end that about 5 years earlier.