The Road to Net Zero ArchitectureArchDaily Topic

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As revolutionary as the construction sector may seem nowadays, it currently accounts for nearly 40% of the world’s carbon dioxide emissions, 11% of which are a result of manufacturing building materials such as steel, cement, and glass. Fast forward a couple of years later, after a life-changing global pandemic and indisputable evidences of climate change, CO2 emissions are still on a rise, reaching a historical maximum in 2020 according to the 2020 Global Status Report for Buildings and Construction. Although a lot of progress has been made through technological advancements, design strategies and concepts, and construction processes, there is still a long way to go to reduce carbon emissions to a minimum or almost zero in the development of built environments.

Earlier this month, a series of cities worldwide have revealed various initiatives that would help them better understand the effects of climate change and shape a more environmentally conscious environment. From several American cities creating digital twins to help curb carbon emissions to the city of Brighton mandating bee bricks to foster biodiversity and Central Park becoming a laboratory for studying climate change adaptation in urban parks, cities take on a multidisciplinary and multi-scalar approach to environmental issues.

With its quantifiable objectives and measurable performance, sustainability often passes as a technological challenge. Its primary language is that of data, equipment, and engineered systems, most often translated into a hyper-technologized layer hidden within a design upholding pre-existing aesthetic norms. As architecture is the image of society at one moment in time, how does the focus on sustainability translate into architectural language, further legitimatizing the efforts to establish an equitable relationship with the environment? Architecture serves as an expression of attitudes, and since sustainability has become a fundamental value, it is worth looking at whether or not it has produced an aesthetic transformation.

Kiribati has a population of around 110,000 people and its economy is centered on fishing and agriculture. Comprised of 33 islands in the Central Pacific, its highest point is only 81 meters above sea level, which makes it potentially the first country that could disappear completely due to global warming and the consequent rise in sea levels. The climate crisis has been a hotly debated topic in recent years and terms such as carbon footprint, greenhouse effect, atmospheric aerosols, and many others, are already staples in our vocabulary. Another widely spoken term is “net zero”, or net zero emission, used as a goal for buildings in different industries and countries. Basically, it means that the energy balance is zero.