A major reason why petrochemicals are such an economical solution in so many places in the supply chain is that petrol companies are drastically subsidized by governments. Merely ceasing those subsidies might go a long way to help

It is easy to forget that plastic is made from oil. Most people just do not have that association in their mind.

The oil industry may be looking down the barrel of renewables eating at a good chunk of their profit and subsidy money. I expect them to do all they can to keep plastic attractive in the eyes of the public.