01:04 Senegal Small-scale gold miners in Senegal use mercury despite health risks The Senegalese government has been trying for years to ban the use of the metal, without success.
02:23 South Africa The camera that saved trapped miners in South Africa A specialised camera has been a literal life line to many miners trapped in South Africa
02:13 Democratic Republic Of Congo Congo’s rebel-held coltan mines continue to pump ore for world’s tech
