Ned Gartside, Sustainable Design Lead at Defra
Ned Gartside, Sustainable Design Lead for Defra, reflects on the second Government Digital Sustainability Alliance (GDSA) summit, which took place in London in February, bringing together nearly 300 digital sustainability experts to celebrate progress and focus minds on the challenges ahead.
My colleague Lydia Tabbron’s recent article, ‘Our biggest digital sustainability moment yet’, touched on the main themes from the eight panel discussions on the day. I’m going to expand on those themes a little and share some key takeaways.
Mike Berners-Lee delivering his keynote talk at the GDSA Summit 2026 Procurement is a powerful lever for change... and it's being pulledAs Minister for Nature, Mary Creagh reminded us in her keynote that the government is the largest purchaser of goods and services in the UK, spending £14 billion on Information and Communications Technology (ICT) every year. That gives it a role as market maker: what the government demands shapes what industry supplies.
Mary Creagh CBE MP, Minister for Nature, delivering her keynote at the GDSA SummitA strong example of this in action is Defra’s new contract to provide colleagues with refurbished laptops by default, reducing costs, carbon and demand for raw materials. Crucially, as Edd Parry from Defra explained, the department was ‘uncompromising on the user experience… as no one likes a hand-me-down’.
These laptops are refurbished to an aesthetic and performance standard at least equal to new ones, creating genuine pride among colleagues rather than reluctance.
This approach offers a scalable model for other departments, many of which are already looking to follow. The upcoming updated Government Buying Standards will support this further, providing a consistent set of minimum sustainability requirements for purchasing hardware, software, cloud hosting and artificial intelligence (AI).
AI brings significant sustainability implications alongside its efficiency gainsAnother significant theme addressed at the summit was the potential and pitfalls of digital technology. Technology can bring real benefits to the public sector: saving time, reducing costs and carbon, and unlocking insight at scale previously thought impossible.
Jeremy Davis from HM Revenue and Customs (HMRC) gave a compelling example of how AI is being used to summarise the 37 million phone calls the department receives each year, freeing up colleagues for other valuable tasks and reducing operational costs.
However, while it might seem that digital technologies, including AI, write their own business case, they are not neutral when it comes to environmental impact. As Claire Robinson from Transform highlighted, the raw computational demands of many AI models mean we need to assess their net environmental impact carefully.
She described a proof-of-concept project in Defra, developed with John Steward, in which an AI tool helped farmers identify funding opportunities relevant to their land, business plans and sustainability goals. A net impact assessment showed that scaling the tool to 20,000 farmers would deliver significant environmental and economic benefits.
We need to look beyond carbonDecarbonisation has long dominated the environmental agenda, and reducing greenhouse gases towards net zero by 2050 is a legal commitment in the UK through the Climate Change Act.
For digital hardware, Professor Deborah Andrews highlighted that carbon from the full product lifecycle represents roughly 50% of environmental impact. The other 50% comes from materials, pollution, water use, resource consumption and land use change involved in mining, processing, manufacturing and distribution. Measuring carbon alone misses half the picture.
For me, the biggest opportunities for circularity are ‘upstream’. Designing hardware so parts can be upgraded or critical minerals can be recovered more easily would reduce a wide range of environmental impacts. It would also support the UK’s Critical Minerals Strategy by reducing demand for valuable materials, and contribute to the Industrial Strategy and the upcoming Circular Economy Growth Plan.
The panel at the GDSA Summit focussing on "Addressing Social Risk and Maximising Social Value" Social sustainability: global supply chains and digital inclusion at homeThe social side of sustainability spans global and domestic issues. Shelley Cotterill from DXC Technology highlighted emerging risks in the AI supply chain from offshoring, including poor working conditions for those involved in labelling data used to train AI models and forced labour in the mining of rare-earth metals used to manufacture computer processors.
Closer to home, Christine Liang from the Department for Science, Innovation and Technology (DSIT) spoke about digital exclusion in the UK. Around 1.6 million people in the UK are completely offline, for reasons ranging from cost to lack of confidence. Recent work in DSIT has explored donating refurbished laptops to digitally excluded people at scale.
From left to right: Ben Tongue, Mark Butcher, Manogna Goparaju and Rachael Stellar discuss Resilient Public Digital We must plan for resilient digital servicesBen Tongue, from NHS England, reminded us that future extreme weather events, made more likely by climate change, could threaten the stability of public services and the digital infrastructure they depend on. As Mike Berners-Lee put it, the greatest risk to health from climate events is not direct injury, but disruption or even breakdown of wider health services themselves when heat or flood events strike.
I recognise that building resilience comes with its own sustainability cost. Creating multiple backups and putting significant redundancy in place increases carbon and resource consumption. As Mark Butcher put it, we need to understand these trade-offs and make sure resilience measures are proportionate, targeted and properly resourced.
More informationNed Gartside is the Sustainable Design Lead for Defra and created the Greener Service Principles, a practical framework built to embed sustainability into everyday digital decision-making.
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seen at 09:35, 23 April in UK Government Sustainable ICT.