Sao Paulo is the city of Brazil and the fourth-largest city in the world by population. Apart from being populous, Sao Paulo is the wealthiest state in Brazil that exerts rooted international influences in finance, commerce, and entertainment.
Sao Paulo has a GDP of $409 billion. Banks and financial institutions contribute significantly to the city’s GDP. Also, Sao Paulo is the third-largest exporting municipality of Brazil and hosts the country’s official stock and bond exchange.
The three richest cities in the world by GDP are Tokyo ($1,790 billion), New York ($1,732 billion), and Los Angeles ($1,048 billion). These cities also happen to be among the most populous worldwide. Furthermore, the cities derive their wealth from huge populations that have increased consumer spending, government spending, and business investments, thus growing their GDPs.
Tuko.co.ke shared an article on the top 15 cleanest cities in Africa 2020. Africa is home to some clean cities which offer sustainable development, prosperous farming, and clean air to residents. This has been contributed by the fact that these states prioritize cleanliness.
Most of the cleanest cities in Africa have put up policies governing littering and pollution which have, in turn, made sure the places are as tidy as possible. The conurbations also collect and dispose of solid waste regularly at designated dumping sites.
https://www.youtube.com/watch?v=tiGUQJ5-GnA