Our guest in The Sustainable Hour no. 461 is climate scientist Professor Emeritus David Karoly.

Guests in The Sustainable Hour no. 460 are: Scott Howison from Joule Chamber in Queensland and farmer Phil Gardiner, who runs a petition against gas companies.

Guests in The Sustainable Hour no. 459 are Paul Oosting from Acacia Money and Tammi Jonas from the Australian Food Sovereignty Alliance

Our guests in The Sustainable Hour no. 458 are Mother's Rebellion organiser Cat Macleod, 'Carbon Colonialism' author Laurie Parsons and director at A Human Agency Katriina Tahka.

Our guests in The Sustainable Hour no. 457 are author, broadcaster and sustainability educator Geoff Ebbes and Karen and Danny Ellis from Mend It, Australia.

Our guests in The Sustainable Hour no. 456 are Mike Bodsworth, who is deputy mayor of Surf Coast Shire, and Blair Palese, managing director of Climate & Capital Media.

Our guests in The Sustainable Hour no. 455 are Tejopala Rawls from the Australian Religious Response to Climate Change, and Vonne Yang from slow fashion start-up InRo.

'The Code' is a new idea to fight climate change and eliminate other corporate abuses of the public interest. Interview with corporate lawyer Robert Hinkley.

Our guest in The Sustainable Hour no. 454 is Rob McBride who for a decade has fought for the protection of a river system against greed and corruption.

Our guests in The Sustainable Hour no. 453 2023 are Dr Mary Debrett, from BREAZE in Ballarat, and Tamzin Rebel, founder of Farming Revolution.