Cities need more trees, G20 housing crisis and who owns the oceans? – Your weekly city news update

A child plays in the musical fountain at the “Plaza 22 de Agosto” in Managua, Nicaragua December 2, 2018. REUTERS/Oswaldo Rivas
Cities plant more trees to curb wild weather, boost healthy living

Big cities are increasingly turning to trees to help protect them from heatwaves and floods


California wildfire survivors face new challenge: rebuilding

Some of those who escaped the flames only to find themselves homeless, are expected to be allowed to return to inspect their properties


In Louisiana, an appetite for oysters shields retreating shores

In Louisiana, coastal cities have joined an oyster-shell recycling program to save the state’s shrinking shoreline

Singapore tests on-demand buses to ease congestion, as Asian cities watch

On-demand public buses already run in parts of New York and Chicago. A service in Helsinki was popular, but proved to be too costly for the city


G20 in grip of ‘collective amnesia’ told to fix housing crisis

From Toronto to Sydney, governments are increasingly under pressure to boost housing affordability and tackle a growing problem of urban homelessness


Emerging cities could attract $29 trillion in climate cash

Green investments, targets and policies in cities will be crucial if countries are to meet their emissions reduction targets

Millions of poor city children worse off than rural peers – UNICEF

‘Children should be a focus of urban planning, yet in many cities they are forgotten’


Trendy avocados removed from UK menus amid environmental concerns

Some cafes in Britain are ditching avocados on ethical grounds, claiming that the water-intensive fruit is harming farmers and land


The final frontier: who owns the oceans and their hidden treasures?