Impact of Buildings on Climate Change: a study of carbon footprint in Oginga Odinga Street, Kisumu City

The main aim of this thesis is to investigate the impact of buildings on climate change in the lake region
climate. The study investigates the embodied energy, carbon footprint and energy use in buildings in selected
buildings and makes recommendations for architects to reduce buildings contribution on climate change
In the first part, literature concerning architecture and its role in climate change is reviewed. This gives a
background on how to analyse buildings in terms of there contribution to pollution. The second part involves
documentation and analysis of the study area, Oginga Odinga street within Kisumu CBD. The empirical part of
the study was conducted in Kisumu City CBD in September 2016. Data for the study was collected from five
case study buildings chosen according to the year of construction to show evolution of carbon footprint. The
computation of building’s impact relied on the Athena Eco-Calculator software. The buildings are subsequently
ranked in terms of there performance and global warming potential.
The results of the study show that newer buildings have a higher carbon footprint as compared to the
earlier buildings in street. The results also reveal that there is increase of materials with higher embodied energy
and decrease in utilization of passive design strategies The neglect of this strategies has led to adoption of
mechanical ventilation, cooling and lighting strategies which increase the use of non-renewable energy sources
and subsequently leading to greenhouse gas emissions.
In conclusion, the thesis argues that design for climate in the lake region is essential in reducing the impact
of buildings in greenhouse emissions. There should be less dependence on non-renewable energy sources and
biased selection of building materials with less embodied energy. This thesis hopes to contribute to architects
knowledge on climatic design in the lake region and thus make a small contribution to reducing buildings carbon
footprint.

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