Earlier quoted context omitted.
Because plastic is so cheap, producers will pay the tax, continue using plastic, and pass the costs onto consumers. Given the higher cost of other materials, changing consumer behavior (which is not easy, but it's happening right now, and achievable through further exposure and education) may be the only way to change producers' behavior. While a tax seems like an easy fix, it may also cause the government to come to…
Simple. Raise the tax to a point that glass bottles, perhaps with deposit-return schemes, or cotton clothing is cheaper for the consumer than the synthetic equivalents. Consumers will buy far more of the now cheaper and more sustainable products and producers who continue using plastic will declare profit warnings and some will become insolvent. Isn't that's how it's supposed to work? Governments survived losing inco…
But first, make sure you understand all of the environmental costs of alternatives to be sure you're not forcing people into an environmentally worse choice. Farming is not exactly a clean industry.