EU climate ministers have struck a tentative deal on a 2040 climate change target after watering down the goal in last-minute negotiations before the UN COP30 summit in Brazil.

After more than 18 hours of negotiations, climate ministers from European Union countries gave their informal backing to a compromise to cut emissions 90 per cent by 2040, from 1990 levels, but with flexibilities to weaken this aim, EU diplomats said.

EU ministers planned to reconvene later on Wednesday morning to formally approve the deal.

A handful of countries including Poland, the Czech Republic and Hungary had indicated they would oppose the plan but not enough to block the agreement, which needs backing from at least 15 member states, diplomats said.

"We believe we have the basis for a political deal," sai

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