The Director General of the Nigerian Institute of International Affairs (NIIA), Professor Eghosa E. Osaghae, has called for a new framework for federalism in Nigeria, one that is more contextualised and adaptable to the country’s unique circumstances.

The year 2023 has been mix-bag and has come with many headwinds as well as positives for the Nigerian economy. For investors looking at Africa’s most populous country what are the opportunities and risk associated in this key market? Steve Alain Lawrence, the Chief Investment Officer at Balfour Capital Group says Nigeria is the final economic frontier, he joins CNBC Africa to explore what the future holds for Nigeria next year.

Are there reasons to be cheerful from the COP28 climate change summit in Dubai? The Kenyan environmental activist Wanjira Mathai says one area where there's growing hope is in the international movement to stop deforestation. She spoke to FRANCE 24 about her own story of activism and continuing the Green Belt Movement founded by her late mother, the Nobel Peace Prize-winning environmentalist Wangari Maathai.

Find these stories and much more when you grab a copy of The Guardian on Saturday.

In tonight's edition: Mauritania and Chad say they're calling time on the G5 Sahel anti-jihadist alliance. Also, Ethiopia's Grand Renaissance Dam offers huge renewable energy prospects, but is also responsible for troubled waters with neighbours Egypt and Sudan. And in DR Congo, election campaigning is in full swing ahead of crucial polls later this month.

More precise than other methane-sensing satellites that came before, MethaneSAT will allow scientists to track emissions to their sources and provide key data for reduction efforts. It's important because it could buy the world critical time in the climate change battle.