BOM has manipulated temperature records to show a false increase in temperature - Senator Gerard Rennick
This is a local politician here in Aus that follows this stuff closely and can occasionally get public servants into a parliamentary enquiry.
Our weather service is manipulating data both physically, with changing the temperature sensors and non physically by amending past data.
The money quote is thus:
"They lied in their reply by saying that if they didn’t homogenise their records the increase would have been bigger."
Which is an odd assertion because it implies that they are fudging data the other way. Fudging data down is still fudging data.
The Bom is the national government weather service here in Aus.