City of London energy-efficient lighting plans to save £500,000 a year
The Square Mile is set to benefit from a new lighting strategy that will aim to complement historic buildings, improve energy usage and help tackle light pollution in the area.
Driving change: What will the planet's roads look like in 2050?
From algae refuelling stations to wildlife bridges, the roads of the future will not just be inanimate slugs of concrete, but an important part of an emissions-free planet. How will we get there? Brad Allen finds out.