GERMAN Clubs in three states have cancelled speeches by controversial climate sceptic Lord Christopher Monckton in protest over his suggestion that economist Ross Garnaut was a Nazi.

The German Club Tivoli in suburban Windsor scrapped plans to host two speeches by Lord Monckton on July 20 after learning he displayed a swastika next to Professor Garnaut's name and said ''Heil Hitler, on we go'' during a lecture in the US.

Lord Monckton. Credit:Graham Tidy

Lord Monckton also alleged the government climate adviser had a ''fascist point of view''.

German Club president Edmund Reichmann said the venue would not host a speaker who used Nazi imagery to attack a public figure unfairly.