The density of hydrogen in plastic bags is about 14 per cent by weight. Current methods for unlocking that hydrogen are energy intensive and multi-staged.
Chemists at the University of Oxford have identified a possible single-step, lower energy intensive process which utilises microwaves and a catalyst of iron oxide and aluminium oxide.
Even more impressive, the process recovered 97% of the hydrogen in the plastic within seconds.
Plans are underway for larger scale testing of the process.