Why do fizzy (or soft) drinks go flat, when you leave the cap off, on warm days?!

Question: Why do fizzy (or soft) drinks go flat, when you leave the cap off, on warm days!?
Hi! Just wondering if anyone knew the answer to this!.!. it was puzzling me!.!. Thanks! =]Www@FoodAQ@Com

fizzy[carbonated] drinks go flat because the there is nothing to hold the co2 from escaping----co2 [105 p!.s!.i!.] is force into the water with the help of a motor pushing/forcing water into a carbonator tank!. the colder the drink, the more carbonated the drink taste!. even if the drink is well carbonated, if not below 40 the drink will taste flat -too much syrupWww@FoodAQ@Com

first answer said it!. It is CO2 that makes those bubbles!. They rise to the top and "pop"!. Every time they do that, your "pop" gets a bit more "flat", until the whole thing is basically sugar-water!.
Hot days increase this action, and also increase evaporation, making the flat drink more "syrupy", if you were to wait long enough to drink a hot, flat "soft" drink!.Www@FoodAQ@Com

The carbonation or gases in the beverages are released into the air !.Www@FoodAQ@Com

Yes but it's anyday not just warm days!.Www@FoodAQ@Com

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