01 October 2026

Government needs to act urgently on greatest security blind spot, say former senior defence leaders

 

Australia is lagging behind traditional allies and failing to take the climate threat seriously, according to a distinguished group of former senior security officials, in an open letter published in metropolitan newspapers today . Signatories to the letter include former Defence Force Chief, Adm. Chris Barrie, and Air Vice-Marshall John Blackburn, former Air Force Deputy Chief.

Australia faces a summer of deadly heat, with an unprecedented “super” El NiƱo underway forecast to bring record global temperatures over the next year. Climate disruption, extreme heatwaves and drought threaten Australians’ health and livelihoods, our energy and transport systems, water security, crops and livestock, and food prices.

The Australian Government has said little about these threats. A 2022 Office of National Intelligence report on climate and security risks remains hidden. There has been no systemic policy action.