President of talks urges ministers and high-ranking officials to find common ground as conference nears its end

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Climate crisis talks look likely to stretch well into the weekend in Brazil, with countries still far apart on the crucial issues of phasing out fossil fuels and cutting carbon.

The Cop30 president, André Corrêa do Lago, urged ministers and high-ranking officials from more than 190 countries to find common ground: “We need to preserve this regime [of the Paris climate agreement] with the spirit of cooperation, not in the spirit of who is going to win or is willing to lose’” he said. “Because we know if we don’t strengthen this, everyone will lose.”

Exclusive: Summit leadership releases new text despite 29 nations threatening to block progress without commitment

A new draft text on the outcome of the Cop30 climate talks has been published that contains no mention of a phase-out of fossil fuels, despite countries supporting such action having threatened to block any agreement without it.

The Guardian revealed on Thursday night that at least 29 nations supporting a phase-out of fossil fuels at the climate summit had sent a letter to the Brazilian Cop presidency threatening to block any agreement that did not include such a commitment, in a significant escalation of tensions at the crunch talks. The leaked letter demanded that the roadmap be included in the outcome of the talks, which are due to end on Friday but are likely to continue into the weekend.

Event thrown into confusion and 13 treated for smoke inhalation after conference centre evacuated

• Brazilian president will take fossil fuel phase-out plan to G20 summit

Talks at the Cop30 climate summit in Brazil were disrupted on Thursday after a fire broke out in the venue, triggering an evacuation just as negotiators were preparing to try to land a deal to strengthen international efforts to address the climate crisis.

Thirteen people were treated for smoke inhalation, organisers said in a statement, after the fire broke out in the pavilion area of the conference centre in Belém, Brazil.

Luiz Inácio Lula da Silva says he is ready to fight for transition roadmap despite opposition from some states

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The Brazilian president, Luiz Inácio Lula da Silva, has told Cop30 delegates that he will take his fossil fuel transition roadmap to the G20 in Johannesburg this week to campaign for it, despite reports that petrostates have said they will not accept the plan.

Before leaving Cop30 in Belém, the figurehead of the global south told civil society representatives he was ready to fight for the proposal to phase out oil, coal and gas in whatever forum was necessary.