“..His main argument is that human-caused greenhouse gases are not the main source of climate change, as claimed by the climate establishment. The flat-lining of global temperatures in the past two decades despite massive CO2 increases is an obvious problem for the orthodox narrative, he says. There are multiple interacting and little-understood natural causes, but computer modelling is privileged over other relevant disciplines, such as geology. Alarmists play down the major uncertainties and use ‘consensus’ as a culture of gatekeeping against contrary views. “Then, and dangerously, dissenters are silenced so that chosen and ‘necessary’ discourses arrive in journals, conferences and boardrooms,” he writes.
Blackall outed himself as a climate sceptic nearly a decade ago. In a 2010 paper also published in Asia Pacific Media Educator (“Anti-terrorism, climate change and ‘dog whistle’ journalism”) he wrote of the compliant mainstream news media fanning fears on behalf of governments about imaginary climate catastrophes.
The media seemed unable to do routine internet searching to act as a ‘watchdog’ on government. This was reflected in its ‘advocacy journalism’ about the 2009 Copenhagen summit and downplaying of the Climategate email leaks, he wrote. 
In this paper he was prescient in highlighting the corrupted temperature data relied on for the alarmist narrative and modelling – including data from non-existent weather stations and stations affected by the non-CO2 urban heat island effects. In contrast, rural stations typically showed decades of consistent temperatures, he said. “News media have failed to explain or examine these simple anomalies,” he complained. He also instanced floods being blamed by media on climate change when the immediate cause was irresponsible local activities upstream, including tree-felling and mismanagement of dams.
He argued that without acutely educated scepticism, journalism graduates fall prey to the seductive and political tune of the dog whistle, such as believing the myth of a ‘climate consensus’.
Dr Blackall’s retirement is a loss to journalist education. Let’s hope there are others like him out there, with the guts, smarts and integrity to take on the “kindergarten science” of climate alarm….” Amazing! A Solid Journalism Academic