Green Warriors: South Africa's Toxic Townships

Johannesburg is considered the most uranium-contaminated city in the world. Waste dumps from around 600 abandoned mines sit next to residential communities, blowing polluted dust into homes and contaminating the soil and water supplies. To get a sense of the sheer extent of the problem, Martin Boudot and his team of researchers investigate. Equipped with a Geiger counter, they uncover some dangerous realities...

• Martin BoudotDirector