A fistful of what makes your digital devices work. In the Congo, artisanal diggers sell cobalt-laden dirt at small shops ...

The tragedy inside your smartphone

The Silicon Valley gold rush – from mobile devices to driverless cars – is built on the power of lithium-ion batteries. But at what cost?

Investors turn to index funds

Investors are either snapping up exchange traded funds or shifting their asset mix and moving away from Australian share funds.