Geography - Urban Livability/SUD Flashcards
Negative effects of Cities
- Occupy 2% of world’s surface, but uses 75% of world’s resources
- Consume two-thirds of world’s energy
- Produce over 70% of CO2
Fear – reduced due to lighting
In 1970, installation of high intensity lighting in Columbia decreased crime rates by 30%
Defining urban is difficult – demographic discrepancy
250 people in Denmark
30,000 in Japan
Air Pollution – Beijing
In Jan 2013, Beijing
- prolonged bout of smog
- hazardous particles 40 times level deemed safe by WHO (world health organization)
In Dec 2015, Beijing issued red alerts for pollution
Urbanisation – Definition
-an increasein the proportion of a country’s population that is classified as urban
Percentages of urbanisation
1800 - 3% of world’s population
1998 - 48%
2025 - 60%
Trends of urbanisation
LDC
- tremendous growth since 1950s
- since 1960s, 95% of urbanisation is due to LDCs
- 36% of people in LDCs lived in cities in 1995 (except Latin American Countries)
- In Brazil alone, between 1950-1975, total population increased by 400 million
DC
- tremendous growth since 1800, slowed down since 1980
- 73% of people in DCs lived in cities in 1995
Master Plan 2008 in Singapore
Master Plan 2014
- focused more on livability (i.e. short term economic growth - built more petrochemical industries
- did not focus on sustainability
Needs – employment
60 million new jobs need to be created every year
Sino-Tianjin Eco City
(balances economic, environmental needs)
vs. The Compact City
(sustainable, but not livable – traffic congestion, high density housing)
- In 2009 - one-third of land is wasteland
NOW - 100% rainwater recycled
- more than 60% of waste recycled
- non-pollutive sectors; generated 4.1 billion
2030 Agenda for Sustainable Development
17 SD goals (by 2030) to:
- end poverty
- inequality
- climate change
Why focus on urban sustainability?
- Demographic pressures
- rise of megacities
- inequality
- environmental pressures
European Green City Index
mainly environmental
- 30 European cities
- 30 indicators to compare
- done by independent agency – EIU
Ecological Footprint (EF)
-Today’s ecological footprint; 23% larger than what the planet can regenerate
Factors influencing EF
- Technology (efficiency resources are used)
- Development and Consumption (widening gap)
- Population (pop. growth)