It's all about the money. That'll never change. Do you think lead was taken out of petrol for environmental reasons ? or is the cheaper Benzene (a known carcinogen) really a less harmful substance ?
Where do all the green taxes go ? All green taxes should be ring-fenced into projects like this, for longer-term thinking/planning.

The taxes go into the Government coffers and help fund flights around the world for our MP's to represent us at the next Climate Summit in the most expensive hotels.

"The facts have changed", Rishi Sunak