The episode analyzes the life cycle of internal combustion and electric cars, comparing energy consumption and CO₂ emissions. It highlights how electric cars, despite requiring more energy during the production phase, emit significantly less CO₂ throughout their entire life cycle, especially when powered by renewable energy sources. The study also considers the impact of local pollutants, which are virtually absent in electric cars. Finally, it outlines future trends, indicating an increasing advantage for electric cars due to the growth of renewable energy sources.