Oslo’s governing mayor on how to green a city, a Mexican city gets a rebrand, car-sharing in Slovenia and Berlin’s rooftops are blooming.

Istanbul ups the war on plastic and we have a word with Labour peer Andrew Adonis.

Toronto’s mayoral race is heating up, Zürich’s mayor tells us what her city is doing right and one of Venice’s bridges gets a revamp.

Animal welfare in Montréal, Munich reaches for the sky, tourism in Slovenia that’s the bee’s knees and Warsaw city councillor Jan Spiewak has his say.

Urban transformation often begins on a local scale, as these inspiring initiatives prove

Moscow has been undergoing a massive programme of urban renewal but this scheme to make the city more liveable isn’t without its costs.

Be it Brazil or Beirut, effective urban regeneration needs ideas from residents who understand their city’s problems and potential. Here’s a global line-up of innovative citizen initiatives.

A school of cities in Toronto, São Paulo tries to do dockless bikes right and can a park in South Carolina bridge racial divides?

The duo connecting city-dwellers with nature and Athens’ city hall asks residents for ideas.

Busan’s industrial waterfront gets a makeover and Portland looks to integrate nature.

Negotiating new civic spaces in Tirana, how Amsterdam’s calamitous North-South metro line got back on track, and British artist Stuart Semple takes councils to task over hostile design.

The mayor of Tbilisi moves from the football pitch to transport talk, and Australia opens up college towns.

Singapore puts a cap on cars, a new development with newshound history and we tour the original media clusters, from Fleet Street to Park Row.