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Think away, I've already been called a troll, by somone who seems to think that they know more about me than I know myself. I predicted that tory boy would be next, so well done because you obviously haven't read the thread.
You are part correct, the government did mandate a reduction in polution after losing a court case to Client Earth. They asked for models, including charging models of how it could be acheived. Burnham came up with his masterplan of 493 square miles, which he then tried to blame on the government. He then had to admit that it was his idea, and told to reduce it.
By then he'd spent millions on signage. cameras, infrastucture, and a big contract to run the system without it ever being signed off. The consultation on the process was miniscule, and as ridiculous as the recent rail consultation.