Theory

• A number of strategies used to improve air quality ensuring that:

  • houses are energy efficient
  • urban development is well served by public transport routes
  • street design is appealing and safe for pedestrians and cyclists
  • waste is well managed
• London's 8.3 million trees provide £95 million worth of air filtration every year in terms of health costs avoided. Together, these strategies serve as a catalyst for local economic development and the promotion of healthy urban lifestyles.
• More recently, schemes such as the UN partnership for Clean Fuels and Vehicles aim to improve air quality; there has been greater investment in improving road quality; and commitments have been made to promote non-motorised journeys.