Surely other energy sources can be a replacement, but for a lot of things, fossil fuel is still the only solution today (agriculture, mining, air travel).
Can we manage the energy transition? Perhaps. I was always a pessimist, so my guess is no. The technology for it has yet to be invented. In overshoot territory, we're already living on borrowed time. The world's ecological footprint widely exceeds the Earth biocapacity has long been exceeded, now imagine 8 billion people who want to live the lifestyle of Americans. Demand in energy just keeps growing. Renewables don't even displace fossil fuels, they only increase the total energy output.
Can we manage the energy transition? Perhaps. I was always a pessimist, so my guess is no. The technology for it has yet to be invented. In overshoot territory, we're already living on borrowed time. The world's ecological footprint widely exceeds the Earth biocapacity has long been exceeded, now imagine 8 billion people who want to live the lifestyle of Americans. Demand in energy just keeps growing. Renewables don't even displace fossil fuels, they only increase the total energy output.