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DIMPACT – measuring emissions from media and digital entertainment

Catherine Van Loo's talk for Green Tech South West on DIMPACT

Green Tech South West presents an online event showcasing the work of DIMPACT, with the fantastic Catherine Van Loo from Carnstone consultancy. This is especially relevant to the South West as University of Bristol Computer Science Department provided the research and technical expertise.

Reducing the emissions of serving digital media and entertainment products

The DIMPACT tool estimates the emissions associated with video streaming, online banner advertising, digital publishing, and audio streaming. The project convened over twenty companies from across the media, entertainment and technology sectors, such as BBC, Netflix, Spotify and Sky. All with an interest in working to reduce their digital emissions and bring transparency to consumers, business, and the sustainability community.

In this talk Catherine will run us through how the DIMPACT project came to be, the key challenges and opportunities from measuring and reducing emissions in this space, and how you can get access to the tool’s methodology.

About Catherine

Catherine has worked across different sectors advising on the implementation of responsible business strategies. Her main areas of expertise are sustainable supply chain management, human rights, and diversity and inclusion. Prior to joining Carnstone, Catherine worked at Business in the Community where she led the Responsible Supply Chain Campaign. Catherine has an MSc from the Louvain School of Management and is fluent in French and Spanish.

Catherine Van Loo's talk for Green Tech South West on DIMPACT

Watch the event video

👋 05:30 – Event starts with a welcome from your meet-up organisers, Ellen, Hannah and Mike

📢 10:50 – Our famous 60 second intros – a chance for attendees to introduce themselves, ask for help and tell us about something the group might find interesting

💚 21:58 – Catherine’s talk

❓ 57:53 – Questions

🗓️ 01:08:25 – Round-up, other community notices and next event announcement

Resources and links

One of the perks of holding events online, and having such a wonderful and engaging community, is we share a huge amount of useful resources and information throughout the event. Here’s a summary of what we unearthed.

Catherine’s slides

Will be available soon.

Links and resources

Community 60 second intros

An opportunity for you, our community, to (very quickly) share something with the rest of us. This can be anything from a green tech project or initiative you are working on, a request for help or guidance or even some knowledge/resource you’d like to share with others

Ed Garrett – One of our fantastic sponsors, Ed is the MD and Founder at The Discourse, a design agency on a mission to enable changemakers. To achieve this they partner with businesses in green tech, consultancies, charities and non-profits to help them define their purpose, become more visible and communicate in a more meaningful way through brand, the web and content. Ed is super passionate about supporting the local green tech sector in Bristol and the South West, so if anyone is looking for grow a business or to increase their impact, please do get in touch with Ed via his LinkedIn!

Oliver Cronk – Works for UK technology and data consultancy and B Corp Scott Logic, where for the past year he’s been leading their sustainable tech practice. Currently in an R&D phase they are building their framework aiming to make it simpler to navigate the world of digital technology and sustainability. With the majority of their work being on cloud, they are now looking for willing guinea pigs with big legacy on-prem estates to help them validate and test on-prem calculation methodology. So if you’re interested in contributing to a big open-source project, get in touch with Oliver via email at or connect with him on LinkedIn!

Gildas Jones – A GTSW regular and Founder and MD at Dial A Geek, a B Corp certified IT company based in central Bristol supporting a who focus on cybersecurity and compliance for the businesses they support. Having recently obtained their B Corp certification, they support a lot of businesses in the green space, working with companies who are doing incredible things in sustainability. Connect with Gildas via his LinkedIn here!

Ben Byford – A enthusiast with a background in game development, web design and AI, Ben has written a number different articles around technology and the environment. Focussed primarily on web design for climate action, and more recently sustainability in the AI and game development space, you can read all of his articles on his website. Ben also runs a podcast called The Machine Ethics podcast, so if you’re interested in in AI make sure to check it out!


Green Tech South West poll for online event with DIMPACT and Catherine Van Loo
Answer: C. Carbon Trust, “Carbon Impact of Video Streaming,” 2021 (Table 4, page 52)
Green Tech South West poll for online event with DIMPACT and Catherine Van Loo
Answer: C. What the Latest Research on Streaming Emissions Tells Us – About Netflix
Green Tech South West poll for online event with DIMPACT and Catherine Van Loo
Answer: B. The environmental reality of audio and video streaming is high carbon emissions. –

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