Buildings that emit no greenhouse gas emissions during their operation are vital to meeting the SDGs and Paris Agreement targets. But in the past, zero carbon buildings have been assumed to be only attainable by technologically advanced or wealthy countries.

With buildings responsible for 32 percent of global energy consumption and a quarter of CO2 emissions, there is a huge, under-tapped opportunity to create more sustainable cities through building efficiency. More efficient buildings can generate economic benefits, reduce environmental impacts and improve people’s quality of life.