Definitions of low carbon concrete announced at COP29

The global cement industry is a significant contributor to greenhouse gas emissions, accounting for approximately 8% of global CO2 emissions.

The Importance of Low-Carbon Concrete and Cement

A Growing Concern

The global cement industry is a significant contributor to greenhouse gas emissions, accounting for approximately 8% of global CO2 emissions. This has led to a growing concern about the environmental impact of cement and concrete production.

These bands were based on the Global Carbon Footprint (GCF) methodology, which assesses the carbon footprint of products based on their production process. The bands were categorized as follows:

Low-carbon concrete: 0-50 grams of CO2 per tonne of cement

Near-zero-emission concrete: 50-100 grams of CO2 per tonne of cement

Ultra-low-carbon concrete: 100-200 grams of CO2 per tonne of cement

Zero-emission concrete: 200-500 grams of CO2 per tonne of cement

The GCCA’s Low-Carbon Concrete Initiative

The Global Cement and Concrete Association (GCCA) has launched a groundbreaking initiative to reduce the carbon footprint of the cement and concrete industry. This ambitious project, known as the Low-Carbon Concrete Initiative, aims to bring trust back to the markets by promoting sustainable and environmentally friendly products.

The Problem: High Carbon Footprint

The cement and concrete industry is one of the largest contributors to greenhouse gas emissions, accounting for around 8% of global CO2 emissions. The production process of cement and concrete involves the calcination of limestone, which releases large amounts of CO2 into the atmosphere. This has significant environmental and social implications, including climate change, air pollution, and habitat destruction.

The Solution: Low-Carbon Concrete

To address this problem, the GCCA has developed a range of low-carbon concrete products that meet specific carbon footprint criteria.

The GCCA set a global reference threshold for concrete by taking an average of what is considered good practice in concrete production in different countries.

GCCA defines “sustainable development” as “the process of creating a more sustainable future” while “inclusivity” is defined as “fostering a culture of inclusivity where everyone has the opportunity to participate” (GCCA, 2020). GCCA has identified the following three key areas for sustainable development: (1) environmental impact, (2) social impact, and (3) economic impact. These areas are interconnected and mutually reinforcing. GCCA aims to promote sustainable development by encouraging professionals to engage in a dialogue about the challenges and opportunities presented by sustainable development. This is facilitated through the provision of training and capacity-building programs. GCCA has established a network of professionals, known as the “GCCA community,” to facilitate this dialogue and support the development of sustainable development. The GCCA community is comprised of over 20,000 professionals from over 100 countries.

The GCCA is a collaborative effort between the American Society of Civil Engineers (ASCE) and the National Association of Home Builders (NAHB). The GCCA is a voluntary program that allows builders to participate and demonstrate their commitment to sustainability. The GCCA is not a certification program, but rather a voluntary framework that provides a set of guidelines and resources to help builders make more sustainable material choices.

What is the GCCA? ### Benefits of the GCCA

Increased transparency: The GCCA provides a clear and transparent way for builders to demonstrate their commitment to sustainability. Improved decision-making: The GCCA’s guidelines and resources help builders make more informed decisions about the materials they use in their projects. Enhanced reputation: Participating in the GCCA can enhance a builder’s reputation and credibility in the market. * Cost savings: The GCCA’s guidelines and resources can help builders identify cost-effective sustainable materials and practices.

The Chaillot Declaration: A Framework for Low-Carbon Buildings

The Chaillot Declaration, adopted by the Intergovernmental Council for Buildings and Climate (ICBC), sets out a framework for low-carbon buildings. The declaration emphasizes the importance of reducing greenhouse gas emissions from the built environment, which accounts for approximately 40% of global emissions.

The building industry is a significant contributor to greenhouse gas emissions, primarily due to the production and use of building materials, energy consumption, and waste management.

The Building Industry’s Environmental Impact

The building industry’s environmental impact is a pressing concern, with the sector accounting for a substantial portion of global greenhouse gas emissions. According to UNEP, the building industry is responsible for 37 per cent of the world’s energy-related carbon emissions.