Sustainability 101: What are life cycle assessments?

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Each product has a narrative. From the uncooked supplies used to create it, to the vitality it consumes, to the place it finally ends up when it’s not helpful— every stage impacts the atmosphere. Life Cycle Assessments, or LCAs, assist us estimate that influence and establish areas for enchancment all through a product’s life cycle.

LCAs assist companies perceive the environmental footprint of their merchandise, processes, or providers throughout each stage of their life cycle. From vitality use to water consumption, LCAs reveal important knowledge that may drive extra sustainable selections.

What’s a Life Cycle Evaluation (LCA)?

A Life Cycle Evaluation evaluates the complete life cycle of a product, together with*:

1. Uncooked materials extraction. One instance is sourcing minerals, metals, or pure fibers.
2. Supplies and product manufacturing — similar to changing supplies into completed merchandise.
3. Transportation and distribution — together with the journey to shops, warehouses, and prospects.
4. Utilization — similar to assets consumed when a product is in use.
5. Finish-of-life — what occurs to a product after use: for example, recycling, reuse, or landfill disposal.

LCAs estimate the environmental influence at every stage, offering an image of a product’s footprint. Companies depend on LCAs to establish the place the best impacts happen and discover alternatives to cut back their environmental influence.

* Be aware, the examples listed above aren’t exhaustive and are supposed to be illustrative.

What do LCAs estimate?

LCAs transcend simply evaluating a product’s carbon footprint to incorporate subjects similar to water consumption, vitality demand, useful resource depletion, waste era, and air pollution. Let’s take the instance of a seemingly easy T-shirt to discover an instance of what may be measured:

International Warming Potential (GWP): LCAs estimate the greenhouse gases like carbon dioxide (CO₂) and methane (CH₄) that contribute to local weather change. For a T-shirt, these emissions happen at each stage—from producing cotton to powering factories and transporting the completed product.

Blue Water Consumption (Water utilization): LCAs estimate how a lot contemporary water is consumed throughout manufacturing and product use. For instance, producing sufficient cotton for a single T-shirt can require hundreds of liters of water, with further water used for dyeing, washing, and cleansing the shirt over its lifetime.

Major Power Demand (Power consumption): LCAs consider the vitality assets used to provide, distribute, and energy a product. For a T-shirt, this consists of working textile equipment in factories and transporting the shirt across the globe.

Ecotoxicity (Waste and air pollution): LCAs estimate pollution that have an effect on air, water, and land. In T-shirt manufacturing, chemical dyes and by merchandise can doubtlessly pollute water sources, and the shirt itself might ultimately find yourself in a landfill.

Abiotic Depletion Potential (Useful resource depletion): LCAs estimate using finite assets like metals, minerals, and fossil fuels. In our T-shirt instance, rising cotton depletes soil vitamins, whereas producing artificial fibers like polyester depends on fossil fuels.

By capturing this full vary of environmental impacts, LCAs empower companies to prioritize extra sustainable actions throughout their operations and product design.

Why LCAs matter for companies

LCAs generally is a highly effective software for driving innovation and lowering environmental influence.

They’ll supply tangible advantages for companies aiming to fulfill their sustainability objectives. By figuring out essentially the most resource-intensive phases of a product’s life, firms can goal environmental “hotspots” and implement adjustments similar to utilizing renewable vitality to energy manufacturing websites or switching to extra sustainable supplies that cut back their general influence. These insights can drive innovation, enabling the design of merchandise which are extra energy-efficient, sturdy, and round with diminished resource-intensiveness and environmental influence.

For instance, it’s estimated that over 80% of product-related environmental impacts are decided throughout the design part.¹ LCAs may also help evaluate options and perceive trade-offs when choosing parts, course of steps or disposal varieties. By integrating LCAs early within the design course of, firms can enhance sustainability outcomes.

Publishing LCA outcomes helps to boost company transparency and assist environmental reporting. Sharing these experiences builds belief with prospects, staff, buyers, and different stakeholders, whereas making certain compliance with world sustainability requirements and reporting frameworks.

How are LCAs performed?

Conducting an LCA is a structured course of that entails gathering knowledge throughout each part of the product lifecycle, assessing environmental impacts, and deciphering the outcomes to assist initiatives like net-zero objectives and round product design.

LCAs comply with globally accepted requirements, such because the Worldwide Group for Standardization’s (ISO) 14040 and 14044. There are different requirements which are additionally primarily based on ISO’s framework.

Cisco’s strategy to Life Cycle Assessments

At Cisco, LCAs play a key position in our efforts to estimate and reduce the environmental influence of our merchandise.

Lately, we introduced that Cisco has made these assessments publicly accessible, sharing LCAs for quite a lot of our merchandise on the Sustainability Sources part of our web site. Cisco has already accomplished 23 LCAs throughout 8 enterprise items prior to now two years and plans to publish further assessments throughout key product traces in 2025. Sharing these outcomes helps transparency and demonstrates our dedication to measurable progress.

Whereas many know-how firms publish LCAs, Cisco is likely one of the first to provide them for networking gear, similar to Catalyst switches. Cisco’s Chief Sustainability Workplace and Provide Chain Sustainability groups proceed to associate with our colleagues throughout the corporate to provide these experiences, and we plan to proceed publishing them as they turn out to be accessible.

LCAs are a part of how we strategy sustainability holistically. LCA knowledge helps our round design technique— to develop merchandise and assets which are reused, repurposed, and saved in circulation for so long as doable. By evaluating every part from materials sourcing to end-of-life disposal, we achieve important insights that information our product design and innovation.

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