on brave-startup, an option on the Dashboard is shown, enabling you to see how much ads and trackers were blocked until now. so far so great.
wouldnt it be nice if this infos show you how much co2 you produced so far through surfing (footprint) - and how much co2 was saved through brave-adblocking / privacy-measures until now? a current trend in european computing is to quantify exactly an average co2-footprint-scenario of each everyday-online-things (streaming, social-networks) a.s.o. - why not do so for daily surfing minus tracking-/ad-networks?
from a technical perspective, you could simply cross-check each opened site locally by including the information https://www.websitecarbon.com delivers for this site (via api: https://gitlab.com/wholegrain/carbon-api-2-0) and add this information in an internal database that could be shown as a sum in the dashboard (resp. sum minus the adblocking/privacy-co2-savings). This should be done in max. 1 hour - if you have the will to do so.
The Dashboard could be a nice place for an option to show this information - as part of the stats, after you enabled “‘co2-footprint-overview’-option in stats”, f.e.