Kaaps is a language widely spoken in the bleak townships of Cape Town, South Africa. It’s often denigrated as a lesser form of Afrikaans – the language that was used as a tool of white supremacy during the apartheid era. Spoken predominately by working class people on the Cape Flats, Kaaps is associated with negative stereotypes – its speakers denigrated as uneducated, "ghetto" layabouts involved in gang culture.

But a new, burgeoning movement led by hip-hop artists, academics, writers and film makers is actively changing that perception. They want to reclaim Afrikaaps to restore the linguistic, cultural and racial dignity of a formerly disenfranchised people. The writer Lindsay Johns travels to Cape Town to meet the activists determined to assert the worth and pride of the people who speak Afrikaaps.

Presenter: Lindsay Johns Producers: Audrey Brown and Tim Mansel Mixed by Neil Churchill Production coordinator: Helena Warwick-Cross Series Editor: Penny Murphy

(Image: Children in Lavender Hill, a township on the Cape Flats in Cape Town, South Africa. Credit: Brenton Geach/Gallo Images via Getty Images)

Assignment tells the story of a young street trader from Lagos who ended up at the heart of an organ harvesting plot involving a senior Nigerian politician and a hospital in the UK. The young man was tested, trafficked and tricked into a plot to remove his kidney, to donate to the daughter of one of Nigeria’s most powerful politicians. As Mark Lobel discovers, the criminal trial and conviction is the first of its kind in the UK – and has led to police investigating more potential cases.

Presenter: Mark Lobel Producer: Kate West Editor: Carl Johnston Sound engineer: Graham Puddifoot

The Great Green Wall is one of the most ambitious environmental projects ever conceived, creating a vast belt of vegetation spanning Africa by 2030; from Senegal on the Atlantic to Djibouti on the Red Sea.

It was heralded as Africa’s contribution to the fight against climate change, reversing damage caused by drought, overgrazing and poor farming techniques. The regreening of 11 Sahel countries on the edge of the Sahara Desert would create millions of jobs, boost food security, and reduce conflict and migration.

The plan was launched by the African Union in 2007, and despite political consensus, only 4% of the Great Green Wall had been completed by 2021. So what has gone wrong? What lessons have been learned, and will a change of strategy ensure its success by the end of the decade?

Presenter: Audrey Brown Producer: Ravi Naik Editor: Tara McDermott Researcher: Anoushka Mutanda-Dougherty Broadcast Co-ordinators: Brenda Brown

(Photo: The Niger river in Mali. Credit: Getty images)

Danny Robins returns to his investigation into the Todmorden UFO case to assess new evidence that has come in from listeners - and also hears from two compelling new witnesses, one in Wales and one in Africa, who both experienced UFO encounters as children.

Do their experiences shed any light on the ongoing mystery of possible alien contact with humans? Is the truth out there?

Written and presented by Danny Robins Editor and Sound Designer: Charlie Brandon-King Music: Evelyn Sykes Theme Music by Lanterns on the Lake Produced by Danny Robins and Simon Barnard

A Bafflegab and Uncanny Media production for BBC Radio 4

Melvyn Bragg and his guests discuss the Mamluks, who ruled Egypt and Syria from about 1250 to 1517. Originally slave soldiers who managed to depose their masters, they went on to repel the Mongols and the Crusaders to become the dominant force in the medieval Islamic Middle Eastern world. Although the Mamluks were renowned as warriors, under their rule art, crafts and architecture blossomed. Little known by many in the West today, the Mamluks remained in power for almost 300 years until they were eventually overthrown by the Ottomans.

With:

Amira Bennison Reader in the History and Culture of the Maghrib at the University of Cambridge and Fellow of Magdalene College

Robert Irwin Former Senior Research Associate in the Department of History at SOAS, University of London

Doris Behrens-Abouseif Nasser D Khalili Professor of Islamic Art and Archaeology at SOAS, University of London

Producer: Victoria Brignell.

Melvyn Bragg and guests discuss the Algerian-French writer and Existentialist philosopher Albert Camus. Shortly after the new year of 1960, a powerful sports car crashed in the French town of Villeblevin in Burgundy, killing two of its occupants. One was the publisher Michel Gallimard; the other was the writer Albert Camus. In Camus’ pocket was an unused train ticket and in the boot of the car his unfinished autobiography The First Man. Camus was 46. Born in Algeria in 1913, Camus became a working class hero and icon of the French Resistance. His friendship with Sartre has been well documented, as has their falling out; and although Camus has been dubbed both an Absurdist and Existentialist philosopher, he denied he was even a philosopher at all, preferring to think of himself as a writer who expressed the realities of human existence. Awarded the Nobel Prize for Literature in 1957, Camus’ legacy is a rich one, as an author of plays, novels and essays, and as a political thinker who desperately sought a peaceful solution to the War for Independence in his native Algeria. With Peter Dunwoodie, Professor of French Literature at Goldsmiths, University of London; David Walker, Professor of French at the University of Sheffield; Christina Howells, Professor of French at Wadham College, University of Oxford.

Melvyn Bragg and guests discuss the link between archaeology and imperialism. In 1842 a young English adventurer called Austen Henry Layard set out to excavate what he hoped were the remains of the biblical city of Nineveh in Mesopotamia. On arrival he discovered that the local French consul, Paul Emile Botta, was already hard at work. Across the Middle East and in Egypt, archaeologists, antiquarians and adventurers were exploring cities older than the Bible and shipping spectacular monuments down the Nile and the Tigris to burgeoning European museums.What was it about the ancient cultures of Egypt and Mesopotamia that so gripped the 19th century imagination? How did nationalism and imperialism affect the search for the ancient past and how did archaeology evolve from its adventuresome, even reckless, origins into the science of artefacts we know today?With Tim Champion, Professor of Archaeology, University of Southampton; Richard Parkinson, Assistant Keeper in the Department of Ancient Egypt and Sudan at the British Museum; Eleanor Robson, Lecturer in the History and Philosophy of Science at Cambridge University and a Fellow of All Souls College, Oxford.