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Anthropocentrism is pushing the systems of the earth to its limits. Economic growth is favored above all, and thus, resources without economic value are seen as waste although they might possess an important ecological role. As a result, ecosystems are put under great stress resulting in a planet struggling with ecological overshoot. Cultural eutrophication over the past century is vastly causing disruption in our marine ecosystems resulting in an observed increase of algal blooms. Algae are considered a waste product despite their ecological importance in this moment and historically. Paradoxically, the urge to explore the idea of future settlements in outer space has led to a search within. In order to sustain a life support system where normally no life exists, earth works as the perfect model to emulate. People are looking into the power of algae due to its unique and vital qualities. In this context it is rather seen as a resource. This study investigated unconventional ways to tackle this issue within the field of architecture. It is challenging conventional building and living standards by exploring a technology involving the implementation of algae integrated in the building’s facade and service system.

The study employed a mixed-methods approach using both qualitative and quantitative research methods which resulted in a theoretical scenario based on the gained knowledge and findings. A site in Northern Sweden was chosen in which the scenario was placed, to explore the performance of the algal technology in a subarctic climate. Algal technology has potential to reduce climate impact by harnessing the natural processes of algae. More specifically through harvesting thermal energy and biomass, CO2 sequestration and oxygen production as well as wastewater treatment. However, there are also a number of challenges that need to be overcome before the technique can be applied on a larger scale. One of the major hurdles is the high cost, and the complexity of the technique requiring careful operation and maintenance. In a subarctic climate there are additional aspects that need to be addressed before the technique can be applied. Another factor to take into account is the length of the season for PBRs in a colder climate. Hence, the alga strain should thrive in a cooler environment and have a wide optimum temperature range. Finally, as with all concepts that are promoted as sustainable, the risk of “greenwashing” due to potential economic and political interests should always be considered.