On colombia.com, advertising and tracking add ≈ 11,260 g CO₂ per million pageviews (9,269 g from ad-serving alone) — 2.1× the index average, cleaner than 13% of the sites we measure.
Ad-relevant
11260
g CO₂ / 1M pageviews
Ad-serving only
9269
g CO₂ / 1M pageviews
135
kg CO₂ / year at 1M pageviews per month
13
% cleaner than the DACH index
18
% 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 →