That's why he wrote a thoughtful essay about the problem of climate cranks for The Daily Mail. They gave it a friendly title,
Beware the global warming fascists: Johnny Ball on how he has been vilified for daring to question green orthodoxyIt reviews some of his TV experience with the "renewable" topics; how he dedicated his life to the promotion of science; how the "renewable energy" still doesn't add up economically; how water is clearly more important than the CO2, and even its changes don't matter much.
I also recommend you a text by Roy Spencer,
On the House Vote to Defund the IPCC