La práctica del reciclaje. Estudio de caso de La Asociación Colombiana de Recicladores Independientes, UPZ Engativá-Bogotá D.C.

El interés de este estudio de caso es analizar los procesos de reciclaje que lideran la Asociación Colombiana de Recicladores Independientes (ACOREIN) en la Unidad de Planeamiento Zonal (UPZ) 74- Engativá, relacionándolos con las perspectivas de ciudad sostenible. Por tal motivo en el primer apartado, se describe y analiza el concepto de sostenibilidad, desarrollo sostenible, y ciudad sostenible, la cual se encuentra ejemplificada. En el segundo capítulo se describe la labor de reciclaje gestionada por ACOREIN, más específicamente en su centro de acopio -El Porvenir-, ubicado en la UPZ 74. Para ello, se analiza el papel de los recicladores, los bodegueros, los residentes, la historia del reciclaje, entre otros aspectos, dentro de la cadena del reciclaje. En el tercer capítulo se establecen unas relaciones a partir de las perspectivas de la ciudad sostenible, y de la experiencia de ACOREIN, dando paso a las conclusiones del proyecto.

De "la Quema" al parque : Notas sobre las políticas urbanas en la dictadura y la producción de pequeños consensos cotidianos en la Ciudad de Buenos Aires (1976-1983)

Este artículo analiza las transformaciones ocurridas entre 1976 y 1983 en el barrio de Villa Soldati de la Ciudad de Buenos Aires, a partir de un doble registro: el de las políticas públicas que impactaron en el barrio y las percepciones que de ellas tuvieron sus habitantes. Para ello, por un lado se reconstruyen los cambios producidos a partir de las políticas públicas que fueron transformando ese territorio de la ciudad, poniendo énfasis en la etapa de la última dictadura militar, especialmente en el cierre de los basurales y la urbanización de esas zonas; por el otro, en la manera en que los habitantes del barrio vivieron dichas transformaciones. Recuperar las perspectivas de los habitantes permite mostrar cómo esas políticas urbanas fueron significadas por los habitantes a partir de su experiencia microterritorial y abordar la complejidad de los procesos de construcción y experienciación de la ciudad

De "la Quema" al parque : Notas sobre las políticas urbanas en la dictadura y la producción de pequeños consensos cotidianos en la Ciudad de Buenos Aires (1976-1983)

Este artículo analiza las transformaciones ocurridas entre 1976 y 1983 en el barrio de Villa Soldati de la Ciudad de Buenos Aires, a partir de un doble registro: el de las políticas públicas que impactaron en el barrio y las percepciones que de ellas tuvieron sus habitantes. Para ello, por un lado se reconstruyen los cambios producidos a partir de las políticas públicas que fueron transformando ese territorio de la ciudad, poniendo énfasis en la etapa de la última dictadura militar, especialmente en el cierre de los basurales y la urbanización de esas zonas; por el otro, en la manera en que los habitantes del barrio vivieron dichas transformaciones. Recuperar las perspectivas de los habitantes permite mostrar cómo esas políticas urbanas fueron significadas por los habitantes a partir de su experiencia microterritorial y abordar la complejidad de los procesos de construcción y experienciación de la ciudad

De "la Quema" al parque : Notas sobre las políticas urbanas en la dictadura y la producción de pequeños consensos cotidianos en la Ciudad de Buenos Aires (1976-1983)

Este artículo analiza las transformaciones ocurridas entre 1976 y 1983 en el barrio de Villa Soldati de la Ciudad de Buenos Aires, a partir de un doble registro: el de las políticas públicas que impactaron en el barrio y las percepciones que de ellas tuvieron sus habitantes. Para ello, por un lado se reconstruyen los cambios producidos a partir de las políticas públicas que fueron transformando ese territorio de la ciudad, poniendo énfasis en la etapa de la última dictadura militar, especialmente en el cierre de los basurales y la urbanización de esas zonas; por el otro, en la manera en que los habitantes del barrio vivieron dichas transformaciones. Recuperar las perspectivas de los habitantes permite mostrar cómo esas políticas urbanas fueron significadas por los habitantes a partir de su experiencia microterritorial y abordar la complejidad de los procesos de construcción y experienciación de la ciudad

Green a city grow a wall

As Brisbane grows, it is rapidly becoming akin to any other city in the world with its typical stark grey concrete buildings rather than being characterized by its subtropical element of abundant green vegetation. Living Walls can play a vital role in restoring the loss of this distinct local element of a subtropical city. This paper will start by giving an overview of the traditional methods of greening subtropical cities with the use of urban parks and street trees. Then, by examining a recent heat imaging map of Brisbane, the effect of green cover with the built environment will be shown. With this information from a macro level, this paper will proceed to examine a typical urban block within the Central Business District (CBD) to demonstrate urban densification in relation to greenery in the city. Then, this paper will introduce the new technology where Living Walls have the untapped potential of effectively greening a city where land is scarce and given over to high density development. Living Walls incorporated into building design does not only enhance the subtropical lifestyle that is being lost in modern cities but is also an effective means for addressing climate change. This paper will serve as a preliminary investigation into the effects of incorporating Living Walls into cities. By growing a Living Wall onto buildings, we can be part of an effective design solution for countering global warming and at the same time, Living Walls can return local character to subtropical cities, thereby greening the city as well.

Seasonal fluctuations in blue-green algae, especially in heterocystous species in polluted coastal waters off Helsinki city, in the northern part of the Gulf of Finland

Tiivistelmä

Planning the sustainable eco-city in Taipei: The implementation of green design and green building schemes

Taipei City has put a significant effort toward the implementation of green design and green building schemes towards a sustainable eco-city. Although some of the environmental indicators have not indicated significant progress in environmental improvement, implementing the two schemes has obtained considerable results; therefore, the two schemes are on the right path towards promoting a sustainable eco-city. However, it has to be admitted that the two schemes are a rather “technocratic” set of solutions and eco-centric approach. It is suggested that not only the public sector but also the private sector need to put more effort toward implement the schemes, and the government needs to encourage the private sector to adopt the schemes in practice.

Protest of the Columbia Typographical Society, addressed to the public generally, and particularly to the printers of the United States, against the Washington Institute; a school about to be organized in the city of Washington, by Daff Green; which proposes to substitute, in the printing business, the labor of boys for that of journeymen.

Mode of access: Internet.

An Epistle to Friends of the Quarterly & Monthly Meetings within the compass of the Yearly Meeting held in Philadelphia adopted at a General Meeting of Friends at Green Street Meeting House in that city, by adjournments on the 4th, and 5th of the 6th Mo., 1827.

Bound with other Friends' pamphlets.

Rethinking regional green space networks in China

Ecological networks are often represented as utopian webs of green meandering through cities, across states, through regions and even across a country (Erickson, 2006, p.28; Fabos, 2004, p.326; Walmsley, 2006). While this may be an inspiring goal for some in developed countries, the reality may be somewhat different in developing countries. China, in its shift to urbanisation and suburbanisation, is also being persuaded to adjust its planning schemes according to these aspirational representations of green spaces (Yu et al, 2006, p.237; Zhang and Wang, 2006, p.455). The failure of other countries to achieve regional goals of natural and cultural heritage protection on the ground in this way (Peterson et al, 2007; Ryan et al, 2006; von Haaren and Reich, 2006) suggests that there may be flaws in the underpinning concepts that are widely circulated in North American and Western European literature (Jongman et al, 2004; Walmsley, 2006). In China, regional open space networks, regional green infrastructure or regional ecological corridors as we know them in the West, are also likely to be problematic, at least in the foreseeable future. Reasons supporting this view can be drawn from lessons learned from project experience in landscape planning and related fields of study in China and overseas. Implementation of valuable regional green space networks is problematic because: • the concept of region as a spatial unit for planning green space networks is ambiguous and undefinable for practical purposes; • regional green space networks traditionally require top down inter-governmental cooperation and coordination which are generally hampered by inequalities of influence between and within government agencies; • no coordinating body with funding powers exists for regional green space development and infrastructure authorities are still in transition from engineering authorities; • like other infrastructure projects, green space is likely to become a competitive rather than a complementary resource for city governments; • stable long-term management, maintenance and uses of green space networks must fit into a ‘family’ social structure rather than a ‘public good’ social structure, particularly as rural and urban property rights are being re-negotiated with city governments; and • green space provision is a performance indicator of urban improvement in cities within the city hierarchy and remains quantitatively-based (land area, tree number and per capita share) rather than qualitatively-based with local people as the focus.

Green transport infrastructure: from motorways to bikeways

In an age when escalating fuel prices, global warming and world resource depletion are of great concern, sustainable transport practices promise to define a new way of mobility into the future. With its comparatively minimal negative environmental impacts, non reliance on fuels and positive health effects, the simple bicycle ofers significant benefits to humankind. These benefits are evident worldwide where bicycles are successfully endorsed through improved infrastructure, supporting policies, public education and management. In Australia, the national, state and locall governments are introducing measures to improve and support green transport. This is necessary as current bicycle infrastructure is not always sufficient and the longstanding conflict with motorized transport still exists. The aim for the future is to implement sustainable hard and soft bicycle infrastructure globally; the challenges of such a task can be illustrated by the city of Brisbane, Australia.