Alarmist talk. Night mists were once believed to cause malaria, too.
There is about as much scientific support for the various causes of cancer as there once was for the Phlogiston theory. Skewed test runs and forced fitting of data to a preconceived notion of the outcome, with perfectly logical but flawed application of observed data means the next generation has to learn some basic facts of the Universe all over again. There is no such thing as “settled science”.
Some 50% of what young skulls full of mush are taught as absolute fact in their formative years turns out to be totally untrue within their own lifetimes. But they never tell you beforehand which 50% that might be.
Yup. Look up the list of carcinogens found in onions and spinach, to cite a couple.
“mal aria” = Bad Air
mid 18th cent.: from Italian, from mal’aria, contracted form of mala aria ‘bad air.’ The term originally denoted the unwholesome atmosphere caused by the exhalations of marshes, to which the disease was formerly attributed.