Australia's media watchdog has ordered the controversial broadcaster Alan Jones to undergo basic journalism training.
The Australian Communications and Media Authority (ACMA) says Mr Jones will have to undertake training on "factual accuracy and significant viewpoints" as part of measures agreed with his station, 2GB.
The broadcaster has been deserted by sponsors and advertisers since telling a Young Liberals conference that prime minister Julia Gillard's father "died of shame" because of his daughter's "lies".
But ACMA acted after finding that Mr Jones breached commercial radio codes of practice in a statement he made about carbon dioxide emissions in March last year.
The ruling states that he said on air:
"Remembering all this when the percentage of man-made carbon dioxide Australia produces is 1% of .001% of carbon dioxide in the air. Nature produces nearly all of the carbon dioxide in the air. Human beings produce 0.001% of the carbon dioxide in the air and Australians produce 1% of that. That's 1% of .001 is .00001% of the air. 1/100000th."
ACMA ruled that an ordinary reasonable listener would have understood the material as a statement of fact, not opinion, and says 2GB has provided no evidence that it or Mr Jones took any steps to ensure the statement was accurate.