I would love to support the merry picture this article is painting but most of the examples are happy accidents.
The diet aspect is cultural and will be around for many generations. You can try and "chip" away at it by education and social mobility but it will still be around. In fact I could murder a fish and chip supper right now.
In terms of open spaces and such, Glasgow council is selling land like its going out of fashion to developers. The joke being "oh theres more student accomodation being built". Plus the city's infrastructure is under strain as Glasgow approaches the 1 million mark.
The weather will always be crap.