Polymer’s Not the Problem. It’s the Green Choice

The problems with plastic are widely known – but not well understood. The truth is, sometimes plastic is necessary. And when it comes to banknotes, polymer substrate is the green choice.

The idea of polymer being the greenest option may seem counterintuitive – but it’s backed by evidence rigorously tested in a wide range of independent life cycle analyses from central banks.

Analyses from central banks in England, Canada and Mexico show polymer banknotes have a lower environmental impact than their cotton-based counterparts. Why? Polymer banknotes are far more durable. They last 3–5 times longer in the cash cycle.

Because fewer banknotes need to be produced, raw materials use is reduced over time. Polymer banknotes significantly cut carbon emissions as well – especially those arising from transport during the distribution phase of the cash cycle.

The evidence for this comes from central banks. For example, a life cycle analysis from 2018 looked at the Banco de Mexico’s polymer series and found emissions had been reduced by 48.8% when compared with cotton-paper banknotes.