Data point 1: Coal-fired power plants are closing at a rapid pace across the US, and no one is building new ones. Nuclear plants are also closing well before their end-of-life plans, largely because they are losing major industrial customers to cheaper sources.

Data point 2: The key cheaper sources are natural gas (due to fracking, which has caused supply to increase and prices to plummet), wind, and solar. The cost of utility-scale solar has dropped over 80% in the past decade(!), and plants are being built based on unit prices of under $60/Mwh, compared to around $100/Mwh for coal and nuclear. Onshore wind is under $50/Mwh and has a solid experience base of data for wind variations etc. Fracked gas is around $40/Mwh, but may be passed soon by both wind and solar. Storage tech (batteries etc) for stabilizing the grid with wind and solar in play are also becoming much cheaper, due to manufacturing improvements and economies of scale.

Data point 3: Electric cars are becoming common, if still a minority, and their prices are also dropping toward being in line with fossil-powered cars. There's every reason to believe this trend will continue, not just because they're getting more affordable, but because they're just plain better cars in many ways.

The infrastructure that burns fossil fuel is highly distributed. Millions (billions?) of cars on the road. Worse, millions (billions) of cold-climate buildings heated by gas or coal.

In the meantime, it's not growing exponentially. It had actually leveled off. There was a spike in the past couple of years, but it doesn't seem reasonable that it's a sustained pattern.