CSIRO has been caught out relying on discredited scientific papers and unvalidated models as the basis for advice to government on climate policy, which is a multi-billion dollar drag on the economy. 

Senator Roberts said, “This is shameful, and I call on the CSIRO Chief Executive, Dr Larry Marshall, and executive Dr Peter Mayfield, to resign. 

“Both have been complicit in the economically destructive policies based on CSIRO’s misplaced climate research.” 

The controversial, but central claim, that carbon dioxide from human activity affects climate and needs to be cut, was the focus of Senator Roberts’ cross-examination of CSIRO. 

When CSIRO was asked for evidence of anything unprecedented in climate due to human carbon dioxide, and despite nearly 50 years of climate research, it could only provide the discredited Marcott (2013) paper on temperatures and the discredited Harries (2001) paper on carbon dioxide. 

Both papers wilted under scrutiny, with CSIRO representatives in agreement with the concerns raised, resulting in CSIRO withdrawing the papers. 

Astrophysicist and Geoscientist Professor Willie Soon was scathing in his assessment of CSIRO’s use of Marcott (2013) by saying “Two weeks after publication this paper was completely destroyed and yet, someone as high up as CSIRO trying to say this paper is legitimate and can be used as a supporting scientific evidence, is scientific malpractice”. 

Senator Roberts stated, “Robust science reflecting the highest standards of integrity and transparency should be the core business of CSIRO. 

“How could it be that climate scientists were unaware that the evidence being used for significant policy-making was based on poor quality and discredited scientific papers. 

“CSIRO’s lack of understanding of the papers they cited shows laziness and lack of intellectual rigor. Clearly, CSIRO cannot honestly claim that human activity is causing climate variability.” 

When pressed further regarding the view of CO2 being dangerous, CSIRO were quick to point out that they never claimed CO2 was dangerous, rather that it was politicians that assigned the word danger to human CO2. 

CSIRO also agreed that temperatures today are not unprecedented. 

In a last ditch attempt CSIRO referenced the United Nations’ reports relying on unvalidated computer models, despite freely admitting CSIRO had not done due diligence on any UN work. 

CSIRO also admitted it had not done due diligence on data from the Bureau of Meteorology. 

Senator Roberts added, “In my discussions with eminent international scientists, Professor John Christie stated he has closely examined CSIRO’s Access Models and found them below par, as the projections simply do not match what we actually see in the real world.” 

Professor Christie added, “Climate is so complex, our ignorance of the climate system is enormous, and the myriad of models have not even agreed on a key variable, CO2 sensitivities. 

“The CSIRO models are running overly warm and this has been proven when comparing real data of the last 40 years with the climate model projections.” 

Dr David Evans, one of the world’s top computer modellers, states, “CSIRO climate models should not be used for policy as they are not right yet. 

“The performance of all climate models, including CSIRO’s, are not sufficiently validated and consistently overestimate warming.” 

Senator Roberts added, “It is the duty and responsibility of politicians to base costly policies and economic structural change on robust scientific evidence, not discredited papers and deficient models.” 

Senator Roberts calls for “a halt to all climate policies and spending until credible empirical evidence is provided to justify the spend, and for an Office of Scientific Integrity to scrutinize science used for policy. 

“The onus is now on parliament to provide the empirical scientific evidence proving that carbon dioxide from human activity needs to be cut, and until that is provided, government must immediately stop wasting billions of dollars on vested interests riding the climate gravy train.”