expand_less This metric covers Sustainable Development Goal 11 of the United Nations’ 17 Sustainable Development Goals. Goal 11 aims to make cities and human settlements inclusive, safe, resilient and sustainable. Cities are large-scale users of energy, water and processed and natural products. Cities generate greenhouse gas (GHG) emissions and produce waste beyond the planet’s regenerative and carrying capacity. The challenge and opportunity for economic activity in cities is to create jobs and prosperity while not straining land and resources. Investments are needed in safe and affordable housing, upgrading slum settlements, public transport, creating green public spaces, and improving urban planning and management.http://www.un.org/sustainabledevelopment/wp-content/uploads/2016/08/16-00055K_Why-it-Matters_Goal-11_Cities_2p.pdf[[http://www.un.org/sustainabledevelopment/wp-content/uploads/2016/08/16-00055K_Why-it-Matters_Goal-11_Cities_2p.pdf| Cities: Why it Matters]]