The Bureau of Meteorology has again been accused by a One Nation senator of changing its data so it fits in with the narrative of climate change extremists.
The head of Australia's weather agency has fended off questions from One Nation senator Malcolm Roberts suggesting the bureau has changed data to fit a climate change narrative.
Senator Roberts has taken issue with a graph which he says can no longer be accessed on the Bureau of Meteorology's website, which had outlined the number of "very hot days" from 1920 to 2015.
"This graph goes against the narrative of the climate extremists and it was removed," the Queenslander said.
"Was it removed because it goes against the narrative or was it removed because there was an error?"
BOM's CEO Andrew Johnson said he had not seen the graph the senator was referencing.
"Firstly, I reject the premise of your overarching question," he said.
"The Bureau of Meteorology simply reports on the data which it observes.
"Integrity of our data is of the highest order and I stand absolutely, 100 per cent behind it."