"We recall the $100 billion that was promised has never been fulfilled and current assessments show that even that amount is not enough," Nyambe said, referring to a 12-year-old pledge by rich nations to provide climate funding for poorer nations.
"Africa must be given adequate time to transition and transform its energy infrastructure. We cannot transform abruptly. We need resources, capacity, technology transfer and finance to power our development," he added.
A commitment made in the previous international summit in Glasgow to spend half of climate funds on helping developing nations adapt to the effects of a warming world by having infrastructure and agriculture that's resilient to more volatile weather systems, must be followed through, said Jean-Paul Adam, director of climate change for the UN's Economic Commission for Africa.
He added the continent only received about 7.5 per cent of its promised $70 billion in climate funding between 2014 and 2018.
Africa needs around $3 trillion to fulfil its self-determined emissions targets, known as nationally determined contributions, that each country is required to submit as part of the 2015 Paris agreement on climate, according to UN and Africa Development Bank estimates.
More meetings between the continent's climate leaders are set to follow ahead of COP27.