Part 3/9:
Transitioning to a clean energy system is not merely a matter of increasing the percentage of renewable energy but involves addressing significant logistical and technological hurdles. To achieve a complete shift to renewable energy, we would theoretically need an astronomical number of wind turbines—about 60 million—to meet global energy demands, assuming all energy could come from this single source. This number illustrates the enormous scale of the challenge, but it is further complicated by the intermittent nature of renewable energy sources.