Ecological footprint is a measure of the environmental impact of communities or individuals. It is defined as the total areas of productive land and water required to produce the resources a population consumes and absorb the waste it produces
To live within the means of the planets resources, the world's ecological footprint would have to equal 1.7 hectares per person, in 2019 humanity was using resources 1.75 times faster than the ecosystems can regenerate
London's ecological footprint covers an area almost twice the size of the UK
Unsustainable Linear System
Inputs = food goods, non-renewable energy, people
Mega City
Outputs = waste (organic, inorganic), air pollution and noise pollution, goods, services, wealth
Sustainable/Circular System
Inputs = local food and goods, renewable energy, people
Eco City = recycling of organic and inorganic waste
Reduced outputs
e.g. Copenhagen, Curitiba, Freiburg
Idea of sustainable in the 1987 report 'Our Common Future' by UN World Commission on Environment and Development, stating sustainable development is 'meeting the needs of the present without compromising the ability of future generations to meet their own needs'
Sustainable City = A city which provides employment, a high standard of living, a clean, healthy environment and fair governance for al its residents
Liveability = The characteristics of a city which improve the quality of life for the people living there
The circular nature of the sustainable city system shows how some of the outputs are recycled, which reduces both the demand for new input resources and pollution and waste levels.
The range of indicators used to measure urban sustainability needs to incorporate social, economic, environmental and political elements
Pillars for Achieving Urban Sustainability
Social development
Economic development
Environmental management
Urban governance
Social Development
Adequate provision of schools and health services
Availability of food supplies
Green housing and buildings
Clean water and sanitation
Economic Development
Decent employment opportunities
Production and distribution of renewable energy
Investment in green technology
Environmental Management
Waste and recycling management
Energy efficient
Water management
Air quality conservation
Forest and soil management
Urban Governance
Adoption of green urban planning and design strategies
Strategies to reduce inequalities
Strengthening of civil and political rights
Support of local, regional and global links
Urban Resilience = the capacity of individuals, communities, institutions, business and systems within a city to survive, adapt and grow, no matter what stresses and shocks they experience
Main obstacle to cities becoming more sustainable tend to be financial ones. Rapidly growing urban populations and limited budgets often choose short term 'cheaper' solutions over long term planning
Key Features of a Sustainable City
Resources and services in the city are accessible to all
Public transport is safe and reliable
Areas of open space are safe, accessible and enjoyable
Waste is seen as a resource, used whenever possible
Access to affordable housing
Strategies for developing more sustainable cities:
Investment in infrastructure and services = Curitiba has an integrated bus system provides a service comparable to a subway that costs 200 times less
Green investment in LICs can help them go from high-carbon energy use to zero-carbon development
Investment in the production and use of renewable areas
Provision of more green areas
Investment in more sustainable and affordable housing
Local curreny
Copenhagen was awarded the title of the European Green Capital in 2019
Copenhagen aims to be green and carbon neutral by 2025 by:
Adding 100 new wind turbines
Reducing heat and commercial electricityconsumption by 20%
Encouraging 75% of journeys to be by bike, foot or public transport
Installing 60,000m^2 of solar panels
Social Development in Copenhagen
Only 2 per cent of employees work over 40 hours a week, this allows more time for family, friends, hobbies and recreational activities, lowering stress
249 miles of cycle lanes means more than half of the commuters travel by bike, reducing sick days by a million
Economic Development in Copenhagen
Economic and financial centre of Denmark, home to a number of international companies and successful business clusters
Highest wages in the world and low unemployment rates
Danes have an entrepreneurial spirit, holding onto independent shops and cafes
Environmental Management in Copenhagen
Habour bisecting the city transformed from industrial into cultural and residential, used to be 100 overflow channels carrying pollutants, but now you can swim there
Has a driverless metro and regional trains and buses
In 2001, offshore wind farm built off the coast and produces 4% of city's energy
Copenhagen's Finger Plan 2007 includes protection of the greenbelt
Urban Governance in Copenhagen
Denmark has one of the highest taxation levels in the world, but this provides generous state welfare
Citizen's Dialogue Project is publicly financed and involves direct public participation in planning
Very high income equality and gender equality - fair and egalitarian society