Is there any reason to think that soda would go flat quicker at different altitudes?

Question

Is there any reason to think that soda would go flat quicker at different altitudes?

Answer 1

The CO2 doesn't want to be dissolved in the soda to begin with; the lower air pressure at higher altitudes makes it easier for the CO2 to escape at cooler temperatures.  (Colder temperatures help preserve carbonation for a little while longer; hot soda goes flat much quicker).