On adidas.cl, advertising and tracking add ≈ 7,654 g CO₂ per million pageviews (289 g from ad-serving alone) — 1.5× the index average, cleaner than 21% of the sites we measure.
Ad-relevant
7654
g CO₂ / 1M pageviews
Ad-serving only
289
g CO₂ / 1M pageviews
92
kg CO₂ / year at 1M pageviews per month
21
% cleaner than the DACH index
96
% of the footprint is tracking overhead, not ad-serving
Measured on the live electricity grid from public page-load data — an estimate of a site's ad-tech architecture, not a measured campaign figure. See the methodology →