Soda is not sustainable. It's not sustainable for health.....just too much sugar.
It doesn't help reduce GHG emission either. Liquid is not compactible, so it takes space and it's heavy. We need to consume enormous amount of energy to transport so many millions (or more?) of bottles and keep them cold. A top of that, soda is accompanied with so much ice that needs more freezers on duty.
I am growingly annoyed when I go to the restaurants and asked "what would you like to drink?" even before I settle down comfortably! With this timing, I almost have to answer immediately! When I get really annoyed, I say "just water please". What I really mean is "Leave me alone and give me some time to think."
But otherwise, I imagine that many people would answer their favorite soda almost automatically. That means, you have almost automatically and unconsciously entitled yourself for 300Kcal or more extra sugar. To make the matter worse, in many places soda is free to refill.
I understand that drink is money making item for restaurants. And offering less soda might hurt business and might increase complaints from customers.
But really sustainable restaurants should be able to offer other values than soda. Plus, really delicious, tasty food doesn't go along with soda. Soda tastes too junky with good food.
Photo: Tea is an Asian alternative for soda. Tim Riley