Sustainable cities

• Sustainability



  Being eco friendly, using resources and the environment that meets our needs without negatively impacting the future generation meeting their needs.
• How to make cities more sustainable?

  • Building on brownfield sites
  • Waste management
  • Water management
  • Making buildings more energy efficient
  • More open green spaces
  • Efficient Public transport
• Building on brownfield sites


  What is it?

  • Land that has been built on before and abandoned

  How is it sustainable?

  • Making use of all available land in the city and not destroying the environment
• Waste management

  What is it?

  • Either recycling or burning waste for electricity

  How is it sustainable?

  • prevents waste going to land fills
  • will not negatively impact the environment
• Water management

  What is it?

  • Managing water that we have and recycling it

  How is it sustainable?

  • reduces amount of waste
  • puts all water to use so it does not run out
• Making buildings more energy efficient

  What is it?

  • making buildings to ensure energy is not wasted
  • use renewables

  How is it sustainable?

  • ensures energy is not wasted
  • reduces greenhouse gas emissions
• More open green spaces


  What is it?

  • making parkland and planting trees around the city

  How is it sustainable?

  • allows the city to have cleaner air as they absorbs CO₂
  • creates habitat
• Efficient public transport

  What is it?

  • improving public transport in an area to make it more efficient
  • creates a more attractive option for people to use

  How is it sustainable?

  • reduce number of cars on the road
  • reducing greenhouse gas emmissions linked to transport
• Sustainable city example: Curitiba

  Curitiba is located in the southern hemisphere in South America in Brazil. It is near the atlantic ocean.
• Curitiba: Recycling



  • They were one of the first cities to have a city wide recycling service
  • Their waste is sorted into two groups: organic & inorganic
  • Recycled waste are used to create new products after sor
• Curitiba: Green Space 'Solution of the park' 


  • They solved the flooding problem by turning river banks into parks and diverted extra water
  • The green spaces also stoped slums from being set up
  • They trees they planted creates better air quality because they take in CO₂ and release oxygen in return
• Curitiba: Intergrated Transport System


  Stratagies they used to reduce congestion in the city:

  • bus lanes in main roads
  • bus system are cheaper than subways
  • bigger doors, pay before entering bus - reduces idle time of the buses
• Curitiba: Social aspects


  Green exchange: People in the low income area gather recyclable waste in exchange for free bus tickets and food

  Why is this beneficial for the people and the environment?

  • garbage trcuks cannot fit into small roads in the low income areas
  • encourages recycling & public transport use
  • reduces food waste
• Curitiba: Environmental Benefits from their stratagies


  • less greenhouse gas emissions
  • better air quality
  • reduces wastes