TikTok has 1 billion users worldwide

TikTok's annual carbon footprint is likely bigger than Greece's, study
finds

Average user generates greenhouse gases equal to driving an extra 123
miles in gasoline-powered car a year, data shows

TikTok's emissions are greater than that of the country that gave us
democracy and gyros.

Estimates from Greenly, a carbon accounting consultancy based in
Paris, place TikTok's 2023 emissions in the US, UK and France at about
7.6m metric tonnes of carbon dioxide equivalent (CO2e) - higher than
those associated with Twitter/X and Snapchat in the same region.

https://www.theguardian.com/technology/2024/dec/12/tiktok-carbon-footprint