Looking Beyond Energy: The Next Test for Semiconductors Is Sustainability.

As AI, electrification, and data center growth push chip demand to record highs, semiconductor companies face pressure to build the emissions data, supplier relationships, and clean energy strategy their customers and regulators will soon require. 

Semiconductors sit at the center of nearly every major technology shift underway right now, from AI infrastructure to electric vehicles to advanced manufacturing. This unique position while becoming a driving factor behind significant growth, also brings a level of accountability few other industries face; customers, regulators, and investors are all asking hard questions about how chips get made and the impact that is having on the planet. Chip production is one of the most energy-, water-, and chemical-intensive manufacturing processes in the world, and as demand accelerates, so does the industry’s carbon footprint.

Semiconductor devices manufactured in a given year carry a lifetime footprint approaching 500 million metric tons of CO2e, according to a joint analysis by BCG, SEMI, and the Semiconductor Climate Consortium, and that number is expected to climb as fabrication plants (fabs) expand to meet AI-driven demand. 

For semiconductor businesses, this means starting conversations with suppliers, procurement teams, and customers. Conversations that reshape how the largest chipmakers and the hundreds of suppliers behind them do business. Major buyers like Apple, Google, and Microsoft have set aggressive supplier decarbonization requirements, standards bodies have released sector-specific accounting guidance, and disclosure regulations globally are pulling more companies into formal reporting obligations every year. 

Businesses which start building real emissions data, credible reduction plans, and clean energy strategies, will be the ones still winning contracts, meeting customer requirements, and maintaining access to capital as the rules tighten. This blog piece breaks down where semiconductor emissions actually come from, and the concrete steps businesses across the value chain should be taking to prepare. 

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Where Semiconductor Emissions Actually Come From 

Understanding the source of the problem is the first step toward solving it. Emissions across the semiconductor value chain break down roughly as follows: 

Scope 1 and 2 emissions get most of the early attention because they are within a company’s direct control. There has been real progress through process gas abatement and renewable electricity procurement. But they typically represent only a fraction of a semiconductor company’s total footprint. The main emission source sits in Scope 3, split between upstream materials and services (purchased chemicals alone can account for roughly a fifth of upstream Scope 3 emissions, with wafers, gases, and metals close behind) and downstream use of the devices themselves, which can represent the majority of a chip’s lifetime carbon footprint depending on the end product. 

This is why the next phase of semiconductor decarbonization includes both individual company effort of cleaning up their own operations and also an industry-wide effort to standardize measurement, share data across hundreds of suppliers, and build accountability into contracts and product design from the start. 

The Top Things Semiconductor Businesses Must Do to Prepare 

1. Build a Credible Scope 1, 2, and 3 Emissions Inventory 

Start by measuring your impact, a full inventory across all three scopes, using sector specific guidance where it exists. The Semiconductor Climate Consortium (SCC), formed by SEMI, has published methodology guidelines for Scope 3 Category 1 (purchased goods and services) and Category 11 (use of sold products). Generic GHG Protocol guidance doesn’t capture the nuances of chip manufacturing, specifically, the purity requirements on aluminum, the mix of specialty gases, and the diversity of end-use applications.  

Using industry-aligned methodology avoids rework later and gives your numbers credibility with customers and auditors knowledgeable in the industry. 

2. Set Science-Aligned, Near-Term Targets 

Once a business has identified its priority emissions sources, it should build a robust plan of action to reduce its footprint and communicate it clearly both internally and externally. Setting targets aligned with Science or following the Science Based Targets initiative (SBTi) demonstrates that a company’s reduction goals are grounded in what science requires. Prioritize near-term (2030) targets alongside any longer-term net-zero ambition. Vague, distant commitments don’t enforce the credibility that buyers and regulators now expect; specific, interim milestones with a clear implementation plan, are what’s fundamental. 

3. Get Serious About Supplier Engagement 

For most semiconductor companies, the majority of their footprint is Scope 3 emissions. Therefore, progress depends on working with the suppliers who provide chemicals, wafers, gases, and equipment. This doesn’t mean automatically managing hundreds of vendors individually. What’s recommended is that companies concentrate engagement on their highest-emitting suppliers, share standardized data requests, and build emissions performance into procurement criteria and long-term contracts. Reducing the number of active suppliers for high-impact material categories and working closely with the ones that remain tends to have better results. 

4. Secure Clean Electricity, and Plan for Rising Demand 

Fabs run all day, and electricity demand is rising as new capacity comes online to meet AI-driven chip demand. Renewable energy procurement, through power purchase agreements (PPAs), green tariffs, or on-site generation, needs to be part of any credible decarbonization strategy. In regions where clean power availability is lower than demand, companies should be actively engaged in policy conversation, since access to low-carbon energy at scale is becoming a genuine constraint on where and how the industry can grow. 

5. Tackle Process Gas and Water Management Head-On 

Scope 1 emissions from process gases, PFCs, NF3, and similar high-GWP compounds used in etching and chamber cleaning, remain a meaningful piece of the footprint, yet one of the more technically solvable ones. Abatement systems, gas substitution, and process optimization all have a track record of reducing these emissions. Water use and treatment deserve the same attention: fabs are enormous water consumers, and water stewardship is increasingly part of how customers and communities evaluate a facility’s environmental footprint. 

6. Develop a Carbon Credit Strategy to Manage Residual Emissions

Even the most aggressive reduction plan will leave some emissions needing to be addressed, particularly hard-to-abate process emissions and legacy equipment that can’t be replaced overnight. A credible decarbonization strategy accounts for this by pairing internal reductions with a plan for addressing residual emissions through high-integrity carbon credits. This isn’t a substitute for reducing emissions at the source; it’s a complement to it, and increasingly an expectation from stakeholders who want to see companies taking responsibility for the full gap between where they are and where science says they need to be. Getting credit sourcing, quality screening, and claims language right matters just as much as the reduction plan itself, since low-integrity credits or overstated claims can undo the credibility a company has worked to build.

7. Treat Sustainability as a Commercial Requirement 

The most important shift happening in this industry right now is that emissions performance is becoming a factor in vendor selection. Buyers are asking suppliers for verified data before signing contracts, and that trend is only going to intensify. Companies that can produce credible, well-documented emissions data and a real reduction roadmap have a genuine competitive advantage in procurement conversations, and companies that can’t are increasingly finding themselves excluded from consideration before pricing even comes up. 

The semiconductor industry is going through a major transition, and the companies that build credible emissions data and reduction plans now will be the ones best positioned to meet customer requirements, satisfy regulators, and compete for contracts as scrutiny increases. This isn’t a problem any single company can solve alone; it requires coordinated action across fabs, materials suppliers, equipment manufacturers, and downstream customers. But by starting to build this foundation today… 

How CarbonBetter Supports Semiconductor and Manufacturing Clients 

At CarbonBetter, we help manufacturing and technology companies estimate emissions footprint, set science aligned targets, develop reporting infrastructure that is increasingly being mandated and design and implement robust carbon credit strategies. Our teams support clients in constructing full Scope 1, 2, and 3 inventories using industry recognized methodologies, developing science-based reduction targets and decarbonization roadmaps, and navigating supplier engagement strategies optimized for greatest impact.. We also help clients evaluate clean energy procurement options and source high-integrity carbon credits to responsibly address emissions that can’t yet be eliminated. Whether your business is just starting to measure its footprint or refining a mature decarbonization program, we help translate complex requirements into a clear, actionable plan. 

If your business is ready to build a credible emissions strategy or needs help making sense of what your customers and regulators are asking for, contact us to learn how CarbonBetter can support your journey.