Global Plastics Treaty

Chris Murray Excerpts

Thursday 17th July 2025 Commons Chamber

[Dr Scott Arthur (Edinburgh South West) (Lab)]

I make my comments in the context of my declaration in the Register of Members’ Financial Interests. I thank the right hon. Member for Orkney and Shetland (Mr Carmichael) for securing the debate. It is on an issue that resonates strongly with many residents in Edinburgh South West—it is not an overstatement to say that I was inundated with emails on it.

Plastics are everywhere. As we have already heard, they are in construction, healthcare, clothing and furniture. It is estimated that about 14 million tonnes of microplastics are lying on the ocean floor right now, and the fashion industry is among the biggest sources.

My former colleague at Heriot-Watt University in my constituency, Dr Mark Hartl, was part of a team who found microplastics in green mussels sold in traditional seafood markets in Jakarta. They estimated that the human intake of microplastics from mussel ingestion ranged from 9,000 to 12,000 microplastic items per person per year. Mark was also part of a team that identified microplastics in seagrass in the Deerness Sound area of the constituency of the right hon. Member for Orkney and Shetland. It was found adhering to the blades of the seagrass in some cases.

Elsewhere in Heriot-Watt University, a small team headed by Dr Lisa Macintyre, an associate professor of textiles at the university’s school of textiles and design in Galashiels in the constituency of the hon. Member for Berwickshire, Roxburgh and Selkirk (John Lamont), who is also in his place, has overseen painstaking research to co-develop the world’s first visual fibre fragmentation scale. That is really important work, because fashion designers—I am not sure how many of them we have in the Chamber—can use it when selecting fabrics for their designs, to understand how likely it is that those small fibres will fall off.

We know that clothing is not the only problem. Global plastic production is set to triple over the next three decades, as we have heard, but our waste management structures are ill prepared to deal with that looming threat. It is therefore right that we take the plastics treaty seriously.

[Chris Murray (Edinburgh East and Musselburgh) (Lab)]

Does my hon. Friend share my horror that global plastic production will double by 2050? He said that his constituents in Edinburgh South West feel strongly about this; I can assure him that people across Edinburgh do. Will he join me in calling for a global plastics treaty that the Government should take forward as a priority?