Overview
- The University of Edinburgh’s Institute for Design Informatics published the findings in PLOS Climate as COP30 opens in Belém.
- Average emissions on COP sites now exceed 2.4g CO2 per visit versus about 0.36g for typical pages, a rise of more than 13,000% since 1995.
- Researchers estimate COP3 1997 page views totaled 0.14kg CO2 compared with 116.85kg from COP29 homepage visits alone.
- They attribute the surge to richer media and larger pages that often measure 3–10MB, and recommend leaner design, modern image formats, fewer invisible scripts, and renewable-powered hosting.
- It is too early to quantify COP30 website emissions, and the site is not hosted on verified renewable-energy infrastructure.