The built environment is responsible for 39% of global energy-related carbon emissions: 28% from operational emissions and the remaining 11% from materials and construction. Decarbonizing the built environment is essential to mitigate the effects of climate change and ensure a sustainable future. To achieve this goal, it is crucial to involve all stakeholders in the process, including investors, developers, designers, and contractors.
Investors are encouraged to commit to industry roadmaps that target embodied carbon reduction. By 2030, investors are expected to finance only projects that comply with carbon reduction targets, and by 2050, only projects that are net-zero in terms of embodied carbon.
Developers play a critical role in decarbonizing the built environment by prioritizing sustainability in their projects. By 2030, developers should aim to achieve a net-zero carbon footprint in new buildings. Thus, they should consider the lifecycle emissions of the building and choose materials and technologies that are low-carbon or carbon-neutral. They can also encourage the use of renewable energy sources such as solar or wind power and incorporate energy-efficient features such as insulation, efficient lighting, and HVAC systems. Additionally, developers can support the adoption of green building standards such as LEED or BREEAM, which promote sustainable construction practices.
Designers also have a crucial role to play in achieving net-zero carbon emissions in buildings. By 2030, designers should only design buildings with an operational net-zero carbon footprint. This requires reducing energy demand through the use of energy-efficient technologies and renewable energy sources. Architects and specifiers should also consider the embodied carbon emissions of the building materials and choose those with a low carbon footprint. Furthermore, they can design buildings that are adaptable and flexible to accommodate future changes in use or technology, reducing the need for demolition and reconstruction.
Contractors are responsible for the construction process and can help to reduce carbon emissions by using low-carbon construction techniques such as modular construction, prefabrication, and off-site fabrication. Already now, they should develop and implement measures to reduce the carbon footprint of the company and projects undertaken. By 2030, contractors should achieve low resource and highly energy-efficient construction sites. This can be achieved by optimizing transportation and logistics to reduce emissions associated with material delivery and construction waste disposal. Moreover, contractors can educate their workforce on sustainable construction practices, including waste reduction, energy efficiency, and the use of low-carbon materials.
To achieve the decarbonization of the built environment by 2050, a collaborative effort between developers, designers, and contractors is crucial. It is essential to adopt a holistic approach that considers the entire lifecycle of the building, from construction to demolition. The use of low-carbon materials and technologies, coupled with renewable energy sources, can significantly reduce emissions. Furthermore, designing buildings that are adaptable and flexible can prolong their lifespan and reduce the need for demolition and reconstruction.
