The entire festival will be powered by renewable energy and battery sources, including the use of electric trucks to install the infrastructure. Every food outlet will serve plant-based food procured using local supply chains, and waste is being minimised with the use of compostable plates and cutlery and the redistribution of surplus food.

To deter long-distance travel, the band offered an initial presale of tickets for local postal codes only (for Bristol, Bath and the surrounding Gloucestershire, Swindon and Taunton areas). Another obvious solution was to encourage audiences to travel by public transport, and to that end, Massive Attack have teamed up for Act 1.5 with UK booking platform Train Hugger, which contributes a quarter of its revenue to restoring the British countryside.

“We’re the UK’s first train-ticketing platform where every time someone books a ticket, we plant a tree,” says co-founder Felix Tanzer. “We’re planning on planting 20,000 oak trees for this show alone.” The trees will be planted in James Wood near Taunton, 40 miles from Bristol.