The main challenge for Africa at COP24, the world summit on climate, is to obtain the means to fight against climate change. To date, only half of the $ 100 billion pledged by 2020 is available. Seyni Nafo, the head of negociators for Africa at COP24 believes that the financial ambitions should be reviewed. He is interviewed by Mouhamadou Touré, Special correspondent of Studio Tamani - Fondation Hirondelle at COP24 in Katowice: