Diesel and gasoline, face to face

Car emission limits have become increasingly strict in recent times, and the usual news is the measures they take in capitals to reduce traffic pollution, such as preventing diesel cars from entering. But is diesel as bad as they say? Should fuel engines be banned in the future? Or will manufacturers be able to comply with the legislation by improving engine technology and using filters? We are looking for answers to these questions from the UPV/EHUKo experts.