South Australian Premier Peter Malinauskas says he would "love" King Charles to travel to Adelaide for the COP31 climate change summit in the event of Australia securing hosting rights.

Mr Malinauskas met with the sovereign on an official visit to the United Kingdom, during which he also signed an agreement with nuclear reactor manufacturer Rolls-Royce regarding the AUKUS submarine deal.

The premier told ABC Radio Adelaide that he and King Charles discussed next year's UN climate summit during their meeting at Clarence House in London.

Adelaide's anxious wait for COP31 decision Photo shows A crowd of people gather under a lot of flags at a climate conference.

Australia's bid to host next's year UN climate conference in Adelaide is taking longer than expected, raising concerns about

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