False, because then they have to experiment and see why it would be illegal. They would have to see if it harms health. If they discovered it today then, all the expirments and things we know already about alcohol and tobacco wouldn't exist. So they'd have to create that. So after a few years it would become illegal, but not at first. Your anwser is False.
Answer: Air pollutants have a complex relationship with climate change. Some pollutants, such as black carbon and ozone, increase warming by trapping heat in the atmosphere, while others, such as sulfur dioxide forming light reflecting particles, have a cooling effect on the climate.
According to google radiation negerlein and nutrients