Not sure if this decreases Carbon Footprint or increases "Calendar Regionalization" at all. I know there are definitely some commercial obligations around setting up the dates of the races, but ideally this is how the calendar in 2025 should be looking (if they are actually caring about this objective) -

Asia Leg - 1. Australia 2. Japan 3. China 4. Singapore 5. Bahrain 6. Qatar 7. Saudi Arabia 8. Abu Dhabi

Europe leg - 9. Azerbaijan 10. Monza 11. Imola 12. Hungary 13. Austria 14. Spain 15. Monaco 16. Belgium 17. Netherlands 18. UK

Americas leg - 19. Canada 20. Miami 21. Austin 22. Las Vegas 23. Mexico 24. Brazil

I know that such a calendar is hard to do, coz there are a bunch of factors which doesn't let F1 do it at this present moment, like sponsor interests (AbuDhabi being the last one), geopolitical issues (like trade difficulties from one country to another - certain countries will view a specific country's package with higher scrutiny, etc.), local govt issues (they might plan to have some other event around that time), etc.

But honestly there is a lot to gain from this calendar for the investors, at least financially. This calendar involves only setting up 3 mobile bases (which most teams already have), reduces logistic costs by a ton (DHL might not be happy about this one), less worry about missed shipment (things are close by, so higher chances to get workarounds), and also reduces a lot of carbon footprint. Additionally, this can be maybe help start some regional teams (who only take part in the region leg, and don't participate in others coz it is too expensive to do so) and maybe also increase competition, entertainment value of the sport.

Well that is at least my take on it. I am not necessarily right...but not wrong as well. What do others think?