Energy Star certified buildings certified in 2012 saved enough energy to power 2m homes for a year
220-storey Sky City project in Changsha plans to drastically cut construction carbon emissions
City-wide energy efficiency drive announced as South Korea continues to push the climate change agenda at home and abroad.
Building designed by architecture student includes state of the art heat-blocking structure, water capture, roof gardens and solar panels.
Speaking at ICLEI Resilient Cities 2012, Jason Hartke from the US Green Building Council sets out his vision of the green building of the future and the pathways there.
Researchers call for increased ambition and propose a 40% reduction by 2050.