What is evident across all methods of analysis however is that larger file size = more data transferred = more CO2 emitted. This is particularly evident when PDFs use large amounts of visual content, such as decorative graphics and high-resolution images or diagrams.Consider inclusion beyond disability. Light, mobile-friendly web pages are critical for users who experience data poverty or have intermittent connections in remote locations. Loading speed has a major impact on the user experience of any online activity, including government services and information.

One analysis found that if we spent 10% less time working, our carbon footprint would be reduced by 14.6%. If we cut the hours we work by 25% – or a day and a quarter each week – our carbon footprint would decline by 36.6%.