Carbon: The Latest Architecture and News

Refurbishment and adaptive reuse have been at the forefront of architectural discourse in recent years. This demonstrates that the profession is becoming increasingly aware of its impact on the environment and the opportunities presented by reusing what has already been built. Architecture 2030 has recently launched CARE, or Carbon Avoided Retrofit Estimator, a new digital tool that enables designers, owners, and communities to quantify the carbon benefits of adaptive reuse. By entering a streamlined set of project information, such as energy targets and potential building interventions, users can quickly estimate both operational carbon emissions generated by the use of the building and embodied carbon emissions, which are tied to the building materials employed.

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Carbon footprint, circularity and environmental sustainability are terms that are increasingly present in many professional fields, but what do they mean? How do they relate to architecture and the built environment? We spoke with civil, environmental and sanitary engineer Lucas Rosse Caldas about these and other emerging architectural issues.

Lucas is a professor at the Graduate Program in Architecture at the Federal University of Rio de Janeiro and the Civil Engineering Program at the same institution. He participated in chapter 9 of the sixth report of the Intergovernmental Panel on Climate Change (IPCC) on buildings. He wrote several scientific and technical articles about architecture and sustainable construction.

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The 2022 United Nations Conference of the Parties, more commonly referred to as COP27, was held between November 6 and November 18, 2022, in Sharm El Sheikh, Egypt. The conference included more than 90 heads of state and an estimated 35,000 representatives, or delegates, from 190 countries. Aimed at encouraging and guiding countries to take effective action against climate change, the next edition of these conferences, COP28, is already scheduled from 30 November to 12 December 2023, in the United Arab Emirates. The CEO of the Abu Dhabi National Oil Co, an oil company chief who also oversees renewable energy efforts in the Emirates, was appointed to preside over the negotiations and talks, which led to a wave of criticism from environmental activists.

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This article was originally published on Common Edge.

A few days ago, the world gathered at Sharm El Sheik, Egypt, for its annual climate change summit: COP27. Like the rest of Africa, Nigeria is represented by its retinue of bureaucrats, climate advocates, and other interest groups. Since the last meeting in Scotland (COP26), Nigeria signed the Climate Change Act into law, setting a target of attaining net-zero greenhouse gas emissions between 2050 and 2070. In the interim, Nigeria has developed an ambitious energy plan that would see it transition from fossil fuels to renewable energy, using its vast reserve of natural gas as a hedge. The country is at the forefront of the African Carbon Markets Initiative and plans to raise at least $500 million from carbon crediting trading to offset emitted carbon.

The growing consumer demand for transparency—especially around sustainability and environmental practices—has implications for industries from apparel to healthcare products. Mars Inc. recently released a cocoa sourcing map to tackle deforestation and increase accountability, and the Fashion Transparency Index pushes apparel companies to be more forthcoming about their social and environmental efforts.

Now it’s time for the building industry, characterized by a lack of information around the materials and practices used in construction and throughout a building’s lifecycle, to catch up. The cost of inaction is too high to ignore. That’s because buildings account for 39 percent of total global carbon emissions. Traditionally, most carbon reduction efforts in the building sector focus on operational carbon—a building’s everyday energy use, which accounts for roughly 28 percent of emissions. The remaining 11 percent comes from what is often ignored: embodied carbon.

This article was originally published on Common Edge.

Martin C. Pedersen talks with Ron Rochon, managing partner at Miller Hull, about Carbon and the role of architectural firms in eliminating emissions. Discussing the EMissions Zero initiative, the current shortcomings of carbon offsets, and the way forward, the piece also questions the possibility of setting goals with the absence of an internationally, agreed-upon carbon cap.

In order to start integrating embodied carbon studies into projects to meet sustainability goals, it is important to consider many factors such as carbon (kgCO2e) values, and what typical ranges of values to be aware of when designing for embodied carbon reduction. This e-book presents an overview of how to start integrating embodied carbon studies in your projects.

Architects of today face a common task that defies intuition – how to balance building performance and strict carbon targets against cost. Sustainability in design is certainly a worthy and necessary goal, but the amount of options can be overwhelming and the costs prohibitive, especially in the eyes of owners. How can designers best convince their clients to integrate sustainability into a project? Keeping costs low and backing up decisions with fact-based analysis are solid first steps.

Practitioners have finally begun taking a more nuanced approach to the carbon emitted by new buildings. Are they too late?

I’ve started calling them come-to-carbon moments—the inner alarm bells that sound as you begin to register the devastating ecological costs of every man-made surface around you. Every sidewalk you’ve ever walked on, every building you’ve ever walked into, and every material inside those buildings, too. It’s the kind of thing you can’t un-see once you’ve started looking, the kind of knowledge that can transform a worldview, or a practice.

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Log 47 reconceives architecture’s role in climate change away from sustainability and solutionism and toward its formal complicity and potential agency in addressing the crisis. In this excerpt from her introductory essay, guest editor Elisa Iturbe defines carbon form as a necessary new way of understanding architecture and urbanism in order to develop a new disciplinary paradigm.

Until now, most environmental discourse in architecture has focused on carbon as a by-product of building and construction, making it seem that at the ecological brink, the most pressing concern is energy efficiency. This stance compartmentalizes the discipline and dislocates the origin of the climate crisis from the dominant political, economic, and spatial organizations that are its cause. In response to this dislocation, Log: 47 Overcoming Carbon Form reconsiders the link between architecture and climate by exploring the reciprocity between energy and built form. To do so, energy must be understood beyond its technical capacity, viewed instead as a political and cultural force with inevitable spatial repercussions.

“Green” measures nothing. Which is greener: a building that saves water or a building that uses certified carpet? There is no obvious answer to this question - this is why trying to quantify “green” is biased and leads nowhere. Using carbon as a metric, on the other hand, makes sense. This is something you can accurately measure and therefore reduce. Going “low-carbon” not only contributes to fighting climate change but also totally redefines construction (choice of materials, energy sources, etc.).

This is why shapedearth.com, the first free online calculator for assessing the whole life embodied carbon of building projects, is such a useful tool.