Solar panels are flanked by the Hong Kong skyline. It is already possible to reduce emissions from cities by 90 per cent using proven low-carbon measures such as solar power, mass transit and improved recycling. Photo: Shutterstock
Solar panels are flanked by the Hong Kong skyline. It is already possible to reduce emissions from cities by 90 per cent using proven low-carbon measures such as solar power, mass transit and improved recycling. Photo: Shutterstock