In sprawling landfills, thousands of Argentinian families scavenge for survival amid toxic waste and government neglect, dreaming of steady jobs and escape

The sun rises over the plateau of Neuquén’s open-air rubbish tip. Maia, nine, and her brothers, aged 11 and seven, huddle by a campfire. Their mother, Gisel, rummages through bags that smell of rotten fruit and meat.

Situated at the northern end of Argentinian Patagonia, 100km (60 miles) from Vaca Muerta – one of the world’s largest fossil gas reserves – children here roam amid twisted metal, glass and rubbish spread over five hectares (12 acres). The horizon is waste.