The weather is omnipresent, my northern friend, and when the buses are running on time it's not a problem to only bring a 600mil coke bottle of water with you,

The weather is omnipresent, my northern friend, and when the buses are running on time it's not a problem to only bring a 600mil coke bottle of water with you, but you will go through that if the bus goes AWOL. It's not practical to bring a camelback everywhere in case the bus decides not to show up, but I don't expect you to know that, since you clearly turn the air-conditioning on at 25.