In the past 50 years, we have more than doubled the miles per gallon of vehicles (or in contemporary terms halved the g/km). Vehicles therefore have become more useful so we use them more. The resulting total vehicle mileage is an order of magnitude greater than it was 50 years ago, and the total fuel consumed has gone ever upwards. This economic model its true of everything.
What you advocate is a recipe for good business and speeding up the demise of fossil fuels but not for saving the planet.
BRYN BIRD (M), Stonehouse Farm, Drayton Lane, Drayton Bassett, Tamworth, B78 3EF