Today we review a report on the future likely for the globe’s urban areas in terms of growth, their increasing share of the world economy, population and greenhouse gas emissions. A “Three C” model is proposed that shows the advantages of cities adopting compact urban growth, connected infrastructure and coordinated governance that already has shown itself in cities such as Stockholm which has seen a 41% economic increase while reducing carbon emissions by 35% over the last 7 years.
“As a proportion of global population, the urban population is expected to reach 60% by 2030, with urban areas growing at a rate of 1.3 million people every week”
“Urban sprawl, poor public transport infrastructure and a lack of basic services such as energy, water and waste can hinder accessibility and mobility, increase air pollution and exacerbate urban poverty, reducing the economic benefits of urban concentrations and increasing costs.”
“Urban areas are associated with around 70% of global energy consumption and over 70% of energy-related carbon emissions”
“from 2012 to 2030…In total, cities are projected to be responsible for 56% of the global increase in carbon emissions”
“Urban air pollution is projected to become the top environmental cause of premature mortality by 2050..in 2012 alone, air pollution resulted in around 7 million premature deaths”
“almost 60% of growth in expected energy consumption is directly related to urban sprawl - more than the consumption related to increases in GDP and demographic changes”
“Due to the long life span of buildings, some have argued that a significant risk exists of locking in around 80% of 2005 global energy use in buildings by 2050 “
“The IPCC estimates that a 20 to 50% reduction in greenhouse gas emissions from urban transport is possible between 2010 and 2050, “ “The 3C model:
- Compact urban growth: .. encourages higher densities, contiguous development, functionally and socially mixed neighbourhoods, walkable and human-scale local urban environments…
- Connected infrastructure: .. Bus Rapid Transit, cycle superhighways, electric vehicles, smart grids, energy efficient buildings and essential water, sanitation and waste services….
- Coordinated governance: …particularly for land-use change and transport.”