This is all very fascinating and enlightening!!I understand about being out and about. I'd buy water, too, (though I usually bring it with me). I don't believe in human-caused global warming but I do believe in litter and air pollution, so I try to avoid unnecessarily adding to either of those.
About bottled water, though. A lot of it (most of it) is "from a municipal source." Words don't always *legally* mean quite what they mean to ordinary people lacking in legalese super-liar powers.If I buy bottled water, I only buy distilled or reverse osmosis water. That's just the water (unless they add back minerals for taste).
The designation "spring water" doesn't really mean anything at all. And source? Their source is most likely a great big water line running into the bottling plant. They're not down on their knees dipping it out of a clear blue pool with rocks and alpine tundra all round and an eagle flying overhead in a cloudless sky. Did you know that "raw, unheated" honey doesn't mean it's raw, nor that it hasn't been heated.
I had no clue about the honey!! how is that even legal!? I noticed now on some stuff they say “cheese like product” or “frozen dairy dessert” Or whatever instead of saying ice cream or cheese if it isn’t really cream or cheese 
maybe similar. I didn’t think of bringing water cause this wasn’t really a planned trip and I thought I’d be back 
true but there is at least as long as possible 
