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These birds were killed by flying into a set of surveyed buildings in Washington DC in 2013. USGS Bee Inventory and Monitoring Lab/Flickr

Buildings kill millions of birds. Here’s how to reduce the toll

The tall buildings of our cities kill horrifying numbers of birds. But some cities are adopting mandatory design measures to cut the toll.
A motorcyclist rides across a bridge in Wuhan, China, in January 2020. The city as banned most vehicle use downtown in an effort to contain the spread of the novel coronavirus. Chinatopix via AP, File

Wuhan, the coronavirus and the world: Thinking beyond isolation

Wuhan, China, the epicentre of the 2019-nCoV outbreak, is now under lockdown. What does that mean for its 11 million citizens, and for the rest of the world?
Tianjin Garden at the northern end of Spring Street is a symbol of Melbourne’s 40-year friendship with its sister city, Tianjin. Leonid Andronov/Shutterstock

After 40 years of Australian-Chinese sister cities, how are they faring?

Australian city councils appreciate the social and educational benefits of having Chinese sister cities. Gaining new markets and attracting tourists and investment have proved more challenging.
Suburban infrastructure growth has resulted in functional landscapes designed to serve the growing needs of urban peripheries. Zhu Hongzhi/Unsplash

The suburbs can help cities in the fight against climate change

Located at the edges of cities, suburbs have a role to play in urban resilience to disasters caused or exacerbated by climate change.
Singapore is known as an example of forward-thinking urban transit planning; vehicle ownership permits are limited and available by lottery. Shutterstock

Cities need to innovate to improve transportation and reduce emissions

Pilot studies in several cities have shown that innovative partnerships are essential in addressing urban transportation challenges and improving the quality of life for urban residents.
Rue des Tournelles, Paris, November 5, 2019. Four Voi scooters wait hopefully for potential clients, with a Lime and Dott sprawling nearby. Behind them, a Velib’ rider has made his choice. Leighton Kille/The Conversation France

E-scooters, bikes and urban mobility: lessons from the streets of Paris

In major cities around the world, dockless scooters and bikes are everywhere, yet the companies themselves are often breathtakingly short-lived. Basic economic concepts give us clues why.

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