Städer och planetära gränser : En utvärdering av Stockholms ochNorra Djurgårdsstadens påverkan påde planetära processerna

The concept of planetary boundaries was introduced in the year 2009 by a group ofresearchers led by Johan Rockström and Will Steffen. The group presented a draft of thelimits of the planet regarding nine Earth System processes concerning climate change, oceanacidification, stratospheric ozone deplet...

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Bibliographic Details
Main Author: Eggestrand, Hanna
Format: Bachelor Thesis
Language:Swedish
Published: KTH, Industriell ekologi 2013
Subjects:
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-139097
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Summary:The concept of planetary boundaries was introduced in the year 2009 by a group ofresearchers led by Johan Rockström and Will Steffen. The group presented a draft of thelimits of the planet regarding nine Earth System processes concerning climate change, oceanacidification, stratospheric ozone depletion, atmospheric aerosol loading, interference with Pand N cycles, global freshwater use, land-system change, rate of biodiversity loss andchemical pollution. The starting point for the study presented in this report was that asustainable development only can be achieved if humankind stays within the boundaries. It istherefore, based on the ongoing urbanization, relevant to evaluate how cities affect the EarthSystem processes. The aim of the study was to investigate if Stockholm Royal Seaport (NorraDjurgårdsstaden), a district in the northeast of Stockholm with a clear environmental profile,affects the Earth System processes less than Stockholm in general does. If so, the district hasmore favorable conditions for a sustainable development. In order to do this, an investigation by Miljöförvaltningen (2012) in Stockholm was used.It presents the environmental impact of Stockholm using “influencing factors”(påverkansfaktorer). By comparing the structure of this investigation, including the targetareas the influencing factors belong to, with how Rockström et al. (2009) describes theprocesses and the boundaries, it was possible to connect influencing factors to each process.For example, the influencing factors shrinking area and barriers, overgrowth and monocultureas well as chemical influence was linked to the loss of biodiversity, the influencing factors Pand N to the P and N cycles, CFC and HCFC to stratospheric ozone depletion, greenhousegases to both climate change and ocean acidification plus a lot of different substances tochemical pollution and atmospheric aerosol loading. However, for the process regardingglobal freshwater use, only one influencing factor could be connected and for land-systemchange, no one at all. ...