You could argue that if tobacco companies had a monopoly on lung health research, it's possible that the damaging effects of tobacco smoke would not have come out as quickly. (scientificamerican.com)
«Very similar compounds are being released in marijuana smoke as in tobacco smoke,» he said. (health.com)
Burning fossil fuels is damaging our planet as badly as tobacco smoke damages our lungs, so why not have warning labels on gasoline? (treehugger.com)