By Diego Giuliani
Published on
30/05/2026 - 15:54 GMT+2
Autonomous heavy machinery and drones are joining forces to cut emissions and enhance safety in tunnel construction, thanks to a Spanish-led EU initiative.
With the construction industry responsible for nearly 40% of global energy-related CO2 emissions, the carbon footprint of the materials and processes in a single major tunnel project can equal the emissions of hundreds of thousands of intercontinental flights.












