According to a new report, Johannesburg has the highest number of millionaires in Africa.
Four cities in the US have each been given $3 million for placemaking projects.
A new study estimates that 90% of seabirds have eaten plastic, and that the threat of plastic pollution is increasing.
According to officials, water use in California dropped by 31.3% in July, exceeding the mandate of a 25% reduction.
The Economist Intelligence Unit’s 2015 Global Liveability Ranking has named Melbourne as the world’s most liveable city.
The UK government is setting up an 18-month off-road trial of ‘electric highways’.
A recent report by Compass has provided a new ranking for the world’s leading startup cities.