Ed Morrissey

Thanks to the increased efficiency of internal combustion engines, their emissions are relatively clean. The increased weight from the massive batteries in EVs forces a significantly higher rate of erosion of tires and brakes, creating massive increases in emissions. Or so the study postulates, anyway. 

The reaction from regulators so far suggests that the study may be accurate. The California’s Air Resources Board suggested that batteries may become lighter in the future, and that manufacturers can use lighter-weight materials on other parts of EVs to compensate. That, however, would mean trade-offs on safety in collisions.