Chris Bowen is staring down rivals Turkey at global climate talks in Brazil, vowing to succeed with Australia's bid to bring a 2026 conference to Adelaide.

It may come down to a crunch meeting between Australia's climate minister and his Turkish counterpart, Murat Kurum.

A deadlock between the two aspirants must be broken at this week's COP30 conference.

Ahead of last-minute negotiations, where Australia is expected to offer concessions for Turkey to drop out, Mr Bowen struck an optimistic note in a series of remarks to summit attendees.

"We are in it and we are in it to win it, let me make it clear," he said.

"We're not going anywhere and South Australia's not going anywhere."

In his first day in Belem, the Amazon rainforest gateway city, Mr Bowen gave Australia's national address,

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