Rising robotic capabilities and falling costs are allowing mining and oil companies to reimagine the dirty business of extracting resources from the earth using machines instead of humans. BHP Billiton, the world’s largest mining company is deploying driverless trucks and drills on iron ore mines in Australia. Rio Tinto’s automated operations in Australia include self-driving trucks the size of houses that haul ore and work alongside robotic rock drilling rigs. Locomotives are being upgraded to drive themselves and will be loaded and unloaded automatically. Suncor, Canada’s largest oil company, has begun testing driverless trucks on oil sands fields in Alberta.