Government are so backwards it hurts

[aviator]

It has been studied as well that the smoke generated from the burning plant matter is practically harmless. However it does temporarily paralyze the cilia so isn't good to smoke all day every day.

I'll look into this, since I was always under the impression the result from any combustion is harmful to one's breathing system. Carbon monoxide, hydrogen cyanide and a large and wide number of cancer causing agents (carcinogens).

If I were to set the grass in my garden alight, the smoke generated would not be good for me, likewise with the combustion of fuels in vehicles, bonfires, smoking tobacco or cannabis.