Support WBURCalifornia wants to end sales of new gas cars by 2035. Here are 4 key roadblocksPlay03:28Download AudioArezou RezvaniAugust 27, 2022 ShareTraffic on the 405 freeway in Los Angeles on Aug. 25. California ruled Thursday that all new cars sold in the state must be zero-emission vehicles by 2035. (AFP via Getty Images)