Despite being far better for the environment, sales of electric cars haven't picked up. But research suggests that by 2022, they could actually work out cheaper to buy and run than conventional vehicles. Could cutting the cost convince people to start saving the environment?

In an effort to improve both air quality and accessibility in some of its poorer districts, the Los Angeles City Council has agreed a contract with Blue Solutions to roll out an electric vehicle sharing pilot among low-income residents, ensuring that affordability isn't a barrier to greener living.

Along with red buses, the Hackney Cab is an iconic part of London's identity. In order to tackle the harmful pollution coming from over 20,000 of them and the countless Uber drivers on the capital's roads – and to persuade people to take a traditional cab – new black cabs will be all-electric.

With more circular initiatives surfacing – from small start-ups to corporate strategies – not everybody is on the same page about what a circular economy entails. As global debates in academic, business and consumer circles heat up, will a zero-waste lifestyle move from a fringe movement to the mainstream?