⚠ Link #enshitification warning: #euronews has a forced agreement type of popup in some browsers (TB). I suggest either Ungoogled Chromium or lynx. Lynx warns “bad html” but it renders fine.
This is being cross-posted to several places so I won’t bother to list them here… but there are a few discussions on this if you look around.
10% and 0.06% are ridiculously far apart, and someone is wildly wrong (or disingenuous) if the values are relative to the same metric. Google tells me (via statista) that Spain produced 261x10^6 tons of CO2 in 2022. The article says a potential savings of 300x10^3 tons from 5000 flight, which is 0.12%.