The South African entrepreneur tells us about his experience growing up under the apartheid regime, before securing a scholarship that would take him to Harvard University in the US.

He's now returned home to set up Cloudline, an airship company which aims to deliver goods and carry out surveys in remote parts of Africa.

Airships are seeing something of a comeback, with investors seeing an opportunity for quick, green transportation without the need for complex infrastructure.

The sector is still in its early stages, but Spencer Horne explains why he's so passionate - and why he believes the technology is the answer to African growth.

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Presented and produced by Russell Padmore

(Image: Spencer Horne. Credit: Cloudline)