> Also I don't understand what does this have to do with climate change? The primary forces a car has to overcome are rolling resistance (proportional to the v

> Also I don't understand what does this have to do with climate change? The primary forces a car has to overcome are rolling resistance (proportional to the vehicles weight) and drag (proportional to speed). If you reduce the speed, you reduce the drag, and therefore you reduce the energy needed to maintain that speed (which decreases emissions directly in ICE vehicles, and indirectly in EV vehicles).