The hydrocarbons produced by burning the rubber tyres are very bad for human health as well as to the environment.
But even knowledgeable people resort to this during protest campaigns whatever they be for/against. … Only because it produces black plumes of smoke.
Today I asked a guy who was rolling a giant tyre towards the transection at the Uni if he knew about the harm that would be inflicted by the obnoxious gases////////// WIht a grin in his face, “Cha chha……Tara k garnu….”
(Yes yes,…. but what to do?)