Focus on Africa - Mali: Tuareg ex-separatists resume hostilities

The crisis in Mali continues to deepen. An alliance of Tuareg rebels called the CMA, which had signed an agreement with the government, has announced that it is resuming hostilities. That comes after Mali’s military government ordered the expulsion of French troops and UN peacekeepers from the country, with a jihadist insurgency still proving impossible to overcome.

Could the deaths of thousands of people in Derna, Libya and the extensive damage to property and infrastructure been mitigated? We hear the views of a construction engineer

Plus, how the self-declared Republic of Somaliland is using an app to boost literacy skills.

Unexpected Elements - Forgetful fish, telescopic worms and bad air days

In a week where global heat records have melted, we find out how that can make fish life-threateningly stupid. We also dive a little deeper to find the part of the ocean where a little heat proves life-enhancing.

And we bring you boring science… no, not in that way. Find out what tree rings can tell us about ancient civilizations and past climates. Also, a new Japanese mission aims to park nice and neatly on the moon – how different is that from the famous first effort from the Apollo 11 team?

We hear about an unwelcome Delhi resident that’s taking years off locals lives – air pollution. And what is a “supervolcano” and how likely is it that one ruins our run as dominant species on this planet?

Presented by Marnie Chesterton With Chhavi Sachdev and Tristan Ahtone

Producers: Alex Mansfield, Ben Motley, Sophie Ormiston, Emily Bird and Patrick Hughes

Focus on Africa - Libya floods: What you need to know

There are scenes of utter devastation in Libya's eastern city of Derna, after a powerful storm caused two dams to burst, sweeping away large parts of the port city. Some aid has arrived, but with the country struggling under divided political administrations in the east and west, Libya's Prime Minister in Tripoli said they would only accept "necessary aid". We look at how the catastrophic impact of Storm Daniel has brought the country’s fragile and complex political situation to the fore.

The United Arab Emirates (UAE) has lifted a year-long visa ban imposed on Nigerian travellers. Flights were stopped last year after Dubai’s Emirates airline suspended operations in Nigeria as it was angered by moves preventing it from transferring its revenues overseas because of a foreign currency crisis.

Also…Conservationists in Egypt oppose the government’s plan to build a highway through Cairo’s centuries old cemetery The City of the Dead.

Focus on Africa - Libya floods: What you need to know

There are scenes of utter devastation in Libya's eastern city of Derna, after a powerful storm caused two dams to burst, sweeping away large parts of the port city. Some aid has arrived, but with the country struggling under divided political administrations in the east and west, Libya's Prime Minister in Tripoli said they would only accept "necessary aid". We look at how the catastrophic impact of Storm Daniel has brought the country’s fragile and complex political situation to the fore.

The United Arab Emirates (UAE) has lifted a year-long visa ban imposed on Nigerian travellers. Flights were stopped last year after Dubai’s Emirates airline suspended operations in Nigeria as it was angered by moves preventing it from transferring its revenues overseas because of a foreign currency crisis.

Also…Conservationists in Egypt oppose the government’s plan to build a highway through Cairo’s centuries old cemetery The City of the Dead.

Focus on Africa - Why Morocco is selective over earthquake aid

We look at why Morocco’s government has been selective over offers of humanitarian assistance from abroad, after the devastating earthquake which has killed more than 2,800 people.

Four East African countries have reportedly incurred an estimated $30 billion in losses between 2021 and 2023, due to extreme droughts and devastating floods.

Plus we meet the Queen of African horror writing, who is scared of ghosts.

Focus on Africa - Why Morocco is selective over earthquake aid

We look at why Morocco’s government has been selective over offers of humanitarian assistance from abroad, after the devastating earthquake which has killed more than 2,800 people.

Four East African countries have reportedly incurred an estimated $30 billion in losses between 2021 and 2023, due to extreme droughts and devastating floods.

Plus we meet the Queen of African horror writing, who is scared of ghosts.

Good Bad Billionaire - Sir Philip Green: King of the high street

How did Sir Philip Green go from being a respected retail mogul to becoming the unacceptable face of capitalism? BBC business editor Simon Jack and journalist Zing Tsjeng find out, and then they judge him.

In the podcast that uncovers how the world's 2,668 billionaires made their money and asks if they are good or bad for the planet, Simon and Zing talk about a man who Simon has had a few run ins with. Hear what it's like to get a phone call in the middle of the night from Sir Philip, how he built his empire, and how it came crashing down.

We’d love to hear your feedback. Email goodbadbillionaire@bbc.com or drop us a text or WhatsApp to +1 (917) 686-1176.

To find out more about the show and read our privacy notice, visit www.bbcworldservice.com/goodbadbillionaire

Focus on Africa - What caused Morocco’s earthquake?

The number of people killed in Friday's powerful earthquake in Morocco has risen to more than two thousand people, the interior ministry says. With a magnitude of 6.8, the earthquake which hit central Morocco is the biggest the area has seen since before 1900.

We explore the impact of military rule in Guinea two years after the fall of former President Alpha Conde.

And we hear how a British-Nigerian performance artist is using opera to reconnect with her Pidgin-speaking roots.

Focus on Africa - What caused Morocco’s earthquake?

The number of people killed in Friday's powerful earthquake in Morocco has risen to more than two thousand people, the interior ministry says. With a magnitude of 6.8, the earthquake which hit central Morocco is the biggest the area has seen since before 1900.

We explore the impact of military rule in Guinea two years after the fall of former President Alpha Conde.

And we hear how a British-Nigerian performance artist is using opera to reconnect with her Pidgin-speaking roots.

Focus on Africa - What caused Morocco’s earthquake?

The number of people killed in Friday's powerful earthquake in Morocco has risen to more than two thousand people, the interior ministry says. With a magnitude of 6.8, the earthquake which hit central Morocco is the biggest the area has seen since before 1900.

We explore the impact of military rule in Guinea two years after the fall of former President Alpha Conde.

And we hear how a British-Nigerian performance artist is using opera to reconnect with her Pidgin-speaking roots.