The same way we reduced pollution from tailpipes. Studies, tests and legislation. Weirdly enough in the US there is the UTQG (Uniform Tire Quality Grading) whi

The same way we reduced pollution from tailpipes. Studies, tests and legislation. Weirdly enough in the US there is the UTQG (Uniform Tire Quality Grading) which includes treadwear, and the EU tire label does not. The EU label does include noise, but the US one does not. In general treadwear warranties are a thing here in the states, but I've never seen them in Europe. I wonder if this is why tires are louder here in the states, are harder tires last longer.