The ute sank to its axels and was abandoned by its driver, who had been trying to cross a three-kilometre section of national park to reach a creek.

The world's largest known lithium deposit exists within a vast salt pan called the Salar de Uyuni, which stretches for thousands of square miles atop a high, dry Andean plateau in Bolivia.

A young homemaker and IAS aspirant has sought to draw the attention of policymakers to the plight of salt pan workers by making a short film and launching an online petition to create safer ...