2021 Owens Corning Sustainability Report | Reducing Our Environmental Footprint | Combating Climate Change | 151 EMBODIED CARBON In recent years, Owens Corning has expanded the scope of our sustainability efforts to include the reduction of embodied carbon in our products. Embodied carbon refers to the total amount of greenhouse gases (especially carbon dioxide) emitted throughout the life cycle of a product, from the extraction of raw materials to its manufacturing, transportation, and use. By increasing the recycled content in our products, making our manufacturing processes more energy-efficient, improving our supply chain logistics, and developing end-of-life solutions for materials, we can decrease the carbon embodied in our products and increase their overall positive impact. This is the formula for carbon neutrality. Strategies for Reducing Embodied Carbon As part of our 2030 goals for product innovation and stewardship, we intend to offer products with the lowest impact with respect to embodied carbon among all available options. To accomplish this, we have a number of strategies in place to lower greenhouse gas emissions in all aspects of our operations. Life Cycle Assessments (LCAs) are comprehensive measurements of a product’s environmental footprint at all its stages — including greenhouse gases — from the extraction of raw materials, through processing, manufacturing, and use, and all the way to its eventual disposal or recycling. Learn more about LCAs in the Product Innovation & Stewardship chapter . The Ecodesign Strategy Wheel is a powerful brainstorming tool that we use to empower product designers to consider sustainability strategies at every stage of the innovation process. More about this tool can be found in the Product Innovation & Stewardship chapter. Owens Corning sponsors the Embodied Carbon in Construction Calculator (EC3) , a tool designed to help designers and specifiers look at a project’s overall embodied carbon emissions, enabling the specification and procurement of low carbon options. We are also members of the Carbon Leadership Forum , a coalition of architects, engineers, contractors, material suppliers, building owners and policymakers dedicated to dramatically reducing the embodied carbon in the building industry and promoting whole-building life cycle assessment and impact reduction. We have developed an Emissions Savings Calculator to help architects and specifiers better understand how FOAMULAR ® NGX™ insulation can reduce the global warming potential of their projects. Launched in 2020, FOAMULAR ® NGX™ insulation features a proprietary blowing agent that demonstrates a greater than 80% reduction in embodied carbon compared to legacy FOAMULAR ® insulation. Across our portfolio, we offer a range of products that lower our carbon footprint. One recent example is PAROC ® Natura insulation , carbon-neutral line of stone wool insulation that uses low-carbon melting technology, green electricity, recycled waste materials, new technologies, and purchased carbon offsets to minimize the amount of CO 2 e emitted during the manufacturing process. As we develop new products and make improvements to existing products, we expect to see even greater reductions in embodied carbon, lowering our overall footprint and contributing to a healthier planet. Partnering to Address Climate Change As part of our work to combat climate change and advance sustainability, we increasingly engage with external parties with which we can leverage our expertise and our products. These partnerships include the following: ■ Trade groups. By partnering with trade organizations, we can expand our reach to consumers and industry professionals, which helps promote energy efficiency and renewable energy practices. For a list of trade groups with which we engage, see Appendix D . We participate at the board level in many strategically relevant organizations, such as the Residential Energy Services Network (RESNET), Building Performance Institute (BPI), National Association of Home Builders (NAHB), and Energy & Environmental Building Alliance (EEBA). Owens Corning employees also participate on committees and working groups in these organizations. ■ Policymakers. We support regulations aimed at the elimination of GHG emissions, and we engage with policymakers to that end. Our government affairs team coordinates these efforts and ensures that activities are aligned with our climate change policy. Our corporate affairs and sustainability departments regularly review proposed communications and activities. ■ Non-governmental organizations (NGOs) . We conduct legal reviews of all external communications, including letters, testimonies, and activities with outside advocates or NGOs. Owens Corning actively partners with organizations that drive forward- thinking programs on a range of topics, including advanced standards for energy efficiency and the durability of buildings. This includes our membership in the Carbon Leadership Forum.