No, they're not all improving.
Topsoil exhaustion and poisoning is global. Freshwater scarcity is much worse in China and the Subcontinent than in the USA. Antibiotic resistance is world-wide. Destruction of rainforests: likewise. Female literacy is declining in developing countries, despite more time spent in "school".
Re:On “A Canticle for Leibowitz”
by TheOtherHobbes on Thursday July 28, 2022 @07:34PM
(#32271357)
That suggests Rest of World will soon experience the decline the US, UK and some other Western countries are experiencing.
Just as the Gibson quote went: "The future is already here -- it's just not evenly distributed"