Green technology to be used by top firms to overhaul UK homes
http://www.guardian.co.uk/business/2010/jan/01/business-academia-institute-sustainability-technology
“Over half the world’s population lives in cities and this is expected to rise to 70% by 2050. Whilst cities only occupy 2% of the world’s landmass, inhabitants use 75% of the planet’s natural resources. Urban activities are responsible for 80% of all CO2 emissions.”
Climate Change: The Role of Cities, UNEP, UN Habitat (2009)