Intercity carbon transfers from vehicle electrification: a new study on China's EV inequality

A new study published in Nature Cities examines how China's rapid electric vehicle adoption is shifting carbon emissions between cities. As EVs draw power from grids with different carbon intensities, some cities effectively export their emissions to others. The research quantifies these intercity electricity and carbon transfers at fine temporal and geospatial scales, revealing growing carbon inequality. The findings matter for carbon accounting and climate policy. If cities claim credit for EV adoption while their electricity comes from coal-heavy grids elsewhere, the net decarbonization benefit may be overstated. The study highlights the need for grid-level carbon tracking and coordinated policy between urban and rural areas to ensure genuine emission reductions.