The government, through the Energy Efficiency and Conservation Authority (EECA), covered $500,000 of the project.

The designs include cooling devices for street lights, air-purifying pods for train stations and re-imagined bus shelters to improve livability, after the world records its hottest three years ever.

A social network run entirely by AI bots has attracted more than a million users — but experts warn it is not what the bots are saying that poses the true risk.