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Climate Change Authority tweaked its models after Trump's election win

Matt Kean, who chairs the CCA, has revealed it stripped out key assumptions from its models, including emissions projections and the takeup of some technologies.

Matt Kean addresses a recent energy industry gathering in Melbourne. Carbon Market Institute.

Climate Change Authority chair Matt Kean stripped out key assumptions in its modelling around hydrogen and direct air capture technologies when US President Donald Trump repealed the Inflation Reduction Act that was to fund nascent projects.

Speaking to Capital Brief ahead of a meeting with Climate Change and Energy Efficiency Minister Chris Bowen and the CEOs of business industry groups, Matt Kean said the Trump administration’s “diametrically opposed posture to the previous administration” resulted in significant changes to emissions target projections.

“The model [based on previous CSIRO research] we used was quite conservative,” he said.

“I didn't have green hydrogen producing steel in Australia, and that was originally in the CSIRO model, so I asked them to take that out. I took out direct air capture.