Picking out any single action as evidence of climate change just being a tax scam is so obviously stupid that it really needs no comment.
I don’t come into London very often but so far as I know the intention behind the levy is to encourage the use of public transport. Reducing emissions helps not just mitigate climate change, albeit in a tiny way on its own, it produces a healthier environment and less congestion.
The earth is undoubtedly in a rapid warming phase, unquestionably caused by man’s activity since the Industrial Revolution.