As well as making money and picking boardroom fights, Hohn, who was once chancellor Rishi Sunakâs boss at TCI, is one of the nationâs biggest philanthropists.
He has pumped more than £4bn into his personal childrenâs charity. And in recent years he has taken on a second cause: the climate crisis, promising to use his fundâs $30bn of investments to âforce change on companies who refuse to take their environmental emissions seriouslyâ.
Well known in the City and on Wall Street as one of the most aggressive activist investors, it came as little surprise to Hohnâs friends that he was not prepared to wait for governments to take action on climate change.