The growing environmental impact of COP websites: An analysis of UNFCCC COP host country websites (1995-2025)

Mahoney, D., Terras, M., Lee, J., Zeller, F. (2025). The growing environmental impact of COP websites: An analysis of UNFCCC COP host country websites (1995-2025). PLOS Climate, 4(11), e0000767. https://doi.org/10.1371/journal.pclm.0000767

Published research

Presentation • Wasteback Machine: measuring the environmental impact of the past web

Mahoney, D. (2026). Wasteback Machine: measuring the environmental impact of the past web. International Internet Preservation Consortium Web Archiving Conference (IIPC WAC), KBR, the Royal Library of Belgium. https://doi.org/10.5281/zenodo.19665574

Paper • Wasteback Machine: a method for quantitative measurement of the archived web

Mahoney, D. (2026). Wasteback Machine: a method for quantitative measurement of the archived web. Information Research: An International Electronic Journal, 31 (iConf), 448-464. https://doi.org/10.47989/ir31iConf64185

Research tool • DHCC Project Self-Assessment Tool

Baker, J., Otty, L., Walton, J. L., Ohge, C., Cummings, J., Dyer, M., Keinan-Schoonbaert, A., Kitcher, N., Mahoney, D., Sichani, A.-M., & Terras, M. (2026). DHCC Project Self-Assessment Tool (v1.0). Digital Humanities Climate Coalition. https://doi.org/10.5281/zenodo.19004251

Report • Interpreting UKRI Environmental Sustainability Guidance for the Digital Humanities (v2.1)

Little, H., Hayes, I., Baker, J., Otty, L., Walton, J. L., Ohge, C., Cummings, J., Dyer, M., Keinan-Schoonbaert, A., Kitcher, N., Mahoney, D., Sichani, A.-M., & Terras, M. (2026). Interpreting UKRI Environmental Sustainability Guidance for the Digital Humanities (v2.1). Digital Humanities Climate Coalition. https://doi.org/10.5281/zenodo.19001739

Paper • Wasteback Machine: Measuring Digital Growth and Sustainability through Web Archives.

Mahoney, D. (2026). Wasteback Machine: Measuring Digital Growth and Sustainability through Web Archives. Digital Research Conference 2026.

Presentation • Grounding the Cloud

Centre for Digital Scholarship (2026). Environmental Impact of Digital Event. University of Oxford. Event. https://doi.org/10.25446/oxford.31281508

Presentation • Wasteback Machine: Measuring Web Page Growth and Estimating Environmental Impact Using Web Archives

Mahoney, D. (2025). Wasteback Machine: Measuring Web Page Growth and Estimating Environmental Impact Using Web Archives. Emerging Digital Methodologies Conference (EDM), University of Oxford, Jesus College, Cheng Kar Shun Digital Hub.

Presentation • Place-conscious-poetic: Grounding the Cloud

Mahoney, D. (2025). Place-conscious-poetic: Grounding the Cloud. ecoCompute.

Paper • The growing environmental impact of COP websites: An analysis of UNFCCC COP host country websites (1995-2025)

Mahoney, D., Terras, M., Lee, J., Zeller, F. (2025). The growing environmental impact of COP websites: An analysis of UNFCCC COP host country websites (1995-2025). PLOS Climate, 4(11), e0000767. https://doi.org/10.1371/journal.pclm.0000767

Article • The Cloud is Not Above Us

Mahoney, D. (2025). The Cloud is Not Above Us. Branch Magazine. https://branch.climateaction.tech/issues/issue-9/the-cloud-is-not-above-us

Paper • Sustainable Web Design: Policy Recommendations for Mitigating the Environmental Impact of United Nations' Websites

Mahoney, D., Terras, M., Lee, J., Zeller, F. Sustainable Web Design: Policy Recommendations for Mitigating the Environmental Impact of United Nations' Websites. Academic Council of the United Nations System (ACUNS) Annual Meeting 2025, Nairobi, Kenya. https://zenodo.org/doi/10.5281/zenodo.15625433

Presentation • Sustainable Web Design: Greening the World's Largest Machine - The Internet

Mahoney, D. (2025). Sustainable Web Design: Greening the World's Largest Machine - The Internet. The British Library, 21st Century Curatorship Talk. https://blogs.bl.uk/digital-scholarship/2025/05/discover-digital-sustainability.html

Browse our Zotero library on sustainable web design

We've curated resources on sustainable web design and more. Rather than repeating existing knowledge, we aim to guide and support those already leading the way toward a more sustainable web.