I agree, they seem to have done summersaults not to allocate full blame.

However, the regulator said it did not believe, given the nature of the programme, that this led to the audience being "materially misled so as to cause harm or offence" - the standard that Ofcom says complaints have to reach.

What, in the history of the world, has ever been more harmful than telling millions of people that their behaviour won't affect the climate?

"Ofcom's logic is that "the link between human activity and global warming... became settled before March 2007".

Actually, the logic that flows from that bit of Ofcom logic is that both they and Channel 4 knew the programme was a pack of lies yet it didn't meet "the Broadcasting Code's definition of "controversial". One therefore wonders what would! Holocaust denial? Nope.