Urban material flow analysis: An approach for Bogotá, Colombia

Piña, William H. Alfonso; Martínez, Clara Inés Pardo

doi:10.1016/j.ecolind.2013.10.035

Cited by 74 publications

(30 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Compared to Bogotá, per‐capita CO 2 emissions are twice as high. Alfonso Piña and Pardo Martínez () report that substitution of coal by natural gas decreased the impact of emissions in Bogotá, which could partially explain the difference. There is a very large difference between nitrogen oxides (NO x ) emissions in Bogotá (287.8 kg per capita) and the two Cape Town studies (reporting 9.5 kg and 8.2 kg per capita), which should be further explored.…”

Section: Resultsmentioning

confidence: 99%

“…Domestic material consumption was also compared with the figures obtained for 155 cities, including Cape Town, by Saldivar‐Sali () using a city typology methodology. Finally, our data is compared with two studies done in the Global South: the earlier ecological footprint work on Cape Town by Gasson (), and an urban material flow analysis on Bogotá by Alfonso Piña and Pardo Martínez (). Both studies employ different methodologies and comparisons should therefore be considered useful for general contrasting purposes, but additional work under similar circumstances and using the same Eurostat methodology will be required to develop more in‐depth comparisons.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Cape Town’s Metabolism: Insights from a Material Flow Analysis

Hoekman¹,

Blottnitz²

2016

J of Industrial Ecology

View full text Add to dashboard Cite

Summary This work aims to contribute to the number of urban metabolism case studies using a standardized methodology. An economy‐wide material flow analysis (EW‐MFA) was conducted on the Metropolitan Municipality of Cape Town (South Africa) for the year 2013, using the Eurostat framework. The study provides insights into the city's metabolism through various indicators including direct material input (DMI), domestic material consumption (DMC), and direct material output (DMO), among others. In order to report on the uncertainty of the data, a set of data quality indicators originating from the life cycle assessment literature was used. The results show that domestic extraction involves significant quantities of non‐metallic minerals, and that imports consist primarily of biomass and fossil fuels. The role of the city as a regional hub is also made clear from this study and illustrated by large quantities of food and other materials flowing through the city on their way to or from international markets. The results are compared with indicators from other cities and with previous metabolism work done on Cape Town. To fully grasp the impacts of the city's metabolism, more work needs to be done. It will be necessary to understand the upstream impact of local consumption, and consumption patterns should be differentiated on a more nuanced level (taking into account large differences between household income levels as well as separating the metabolism of industry and commerce from residential consumption).

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Cape Town’s Metabolism: Insights from a Material Flow Analysis

Hoekman¹,

Blottnitz²

2016

J of Industrial Ecology

View full text Add to dashboard Cite

show abstract

“…Where longitudinal studies of a single city were performed, it was found that the share of these burdensome foods were only increasing (Warren‐Rhodes and Koenig ; Sahely et al. ; Alfonso Piña and Pardo Martínez ; Wang et al. ), excepting Macao (Li et al.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, cities as accumulators of wealth also appear to become centers of excess consumption with economic development, though future research is need to understand whether the organic waste in cities is comprised of high‐impact food (meat and dairy) let alone edible food. Even the relatively middle‐income city of Bogota relegated 140 kg/a/capita of food to landfills (Alfonso Piña and Pardo Martínez ), elevated well above the global average.…”

Section: Discussionmentioning

confidence: 99%

Surveying the Environmental Footprint of Urban Food Consumption

Goldstein

Birkved

Fernández

et al. 2016

J of Industrial Ecology

View full text Add to dashboard Cite

Summary Assessments of urban metabolism (UM) are well situated to identify the scale, components, and direction of urban and energy flows in cities and have been instrumental in benchmarking and monitoring the key levers of urban environmental pressure, such as transport, space conditioning, and electricity. Hitherto, urban food consumption has garnered scant attention both in UM accounting (typically lumped with “biomass”) and on the urban policy agenda, despite its relevance to local and global environmental pressures. With future growth expected in urban population and wealth, an accounting of the environmental footprint from urban food demand (“foodprint”) is necessary. This article reviews 43 UM assessments including 100 cities, and a total of 132 foodprints in terms of mass, carbon footprint, and ecological footprint and situates it relative to other significant environmental drivers (transport, energy, and so on) The foodprint was typically the third largest source of mass flows (average is 0.8 tonnes per capita per annum) and carbon footprint (average is 2.1 tonnes carbon dioxide equivalents per capita per annum) in the reviewed cities, whereas it was generally the largest driver of urban ecological footprints (average is 1.2 global hectares per capita per annum), with large deviations based on wealth, culture, and urban form. Meat and dairy are the primary drivers of both global warming and ecological footprint impacts, with little relationship between their consumption and city wealth. The foodprint is primarily linear in form, producing significant organic exhaust from the urban system that has a strong, positive correlation to wealth. Though much of the foodprint is embodied within imported foodstuffs, cities can still implement design and policy interventions, such as improved nutrient recycling and food waste avoidance, to redress the foodprint.

show abstract

“…Moreover, cities are related to higher levels of learning and education, better health, easier access to social services, and enhanced opportunities for cultural and political participation. However, cities have negative aspects, such as vehicular congestion, higher levels of pollution, and higher demand for resources, that drive unsustainable production and consumption patterns [4][5][6]. These patterns suggest an unsustainable model of cities, which implies the need to rethink the means of urban planning and growth to improve overall performance and urban efficiency to produce more The concept of urban efficiency derives from different theories and concepts developed in the 20th century, such as the notion of sustainable cities.…”

Section: Introductionmentioning

confidence: 99%

Development and Urban Sustainability: An Analysis of Efficiency Using Data Envelopment Analysis

Piña

Martínez

2016

Sustainability

View full text Add to dashboard Cite

Abstract:In recent decades, the majority of cities in developing countries have grown rapidly and have experienced increasing environmental problems. These changes have generated a broad discussion on urban sustainability and development. In this discussion, it is fundamental to establish methods for measuring urban sustainability using a quantitative approach. This research seeks to estimate and evaluate the environmental, social, and economic efficiency of cities in a developing country, Colombia, using data envelopment analysis to determine the changes that occurred between 2005 and 2013. In this study, indicators related to economic, environmental, and social performance are used with the objective of analyzing efficiency from urban sustainability. The results indicate differences among cities, where the efficient cities show adequate resource use, lower environmental impacts, improved social conditions, and guaranteed economic growth and development. Moreover, as the city scale increases, urban sustainability declines. All these findings are important in the formulation and design of adequate urban policies to improve and strengthen sustainability and social welfare over the long term, particularly in cities in developing countries.

show abstract

Urban material flow analysis: An approach for Bogotá, Colombia

Cited by 74 publications

References 43 publications

Cape Town’s Metabolism: Insights from a Material Flow Analysis

Cape Town’s Metabolism: Insights from a Material Flow Analysis

Surveying the Environmental Footprint of Urban Food Consumption

Development and Urban Sustainability: An Analysis of Efficiency Using Data Envelopment Analysis

Contact Info

Product

Resources

About