Costco Wholesale Corporation (NASDAQ:COST) closed its fiscal fourth quarter with results that highlight both its financial strength and long-term sustainability commitments. The retailer reported revenue and earnings that beat expectations, showing it remains strong in a tough retail market.
At the same time, Costco reinforced its ambition to reach net-zero emissions by 2050, with interim 2030 targets already in motion. For investors, earnings results and ESG updates provide two key insights. They show strong business performance now and outline a path for future environmental responsibility.
Strong Financials, But Mixed Investor Reaction
Costco reported its fiscal fourth quarter results after markets closed. Adjusted earnings per share came in at $5.87, beating the $5.80 forecast.
Revenue reached $86.2 billion, narrowly ahead of expectations. However, same-store (comparable) sales rose 5.7%, slightly below the anticipated 5.9%.

The company also revealed full-year sales of $269.9 billion, up 8.1% from $249.6 billion a year ago. Extended store hours implemented in summer added roughly 1% to weekly U.S. sales, according to the CEO — a modest but positive boost.
Investors were cautious, though, even with good results. They noted a small shortfall in comps and worried about margin pressure. Costco’s stock still dips despite better-than-expected results.

Membership Muscle: Costco’s Secret Weapon
Costco’s strength lies in its membership model. The company ended the period with 81 million paid memberships, of which 38.7 million were executive tier. Renewals remain high, particularly in the U.S. and Canada.
Its limited product assortment and bulk sales model help streamline logistics and negotiating leverage with suppliers. Bulk buyers and value-seeking shoppers have kept foot traffic robust, even in tougher economic times.
Costco continues to expand overseas, focusing on markets like China and Spain. Its broad geographic reach—covering North America, Asia, and Europe—gives it scale and flexibility.
Greener Aisles: From Solar Roofs to Net-Zero Goals
Beyond financials and stock performance, Costco is advancing sustainability goals. The giant retailer has committed to net-zero greenhouse gas emissions by 2050.
To support that, it plans to reduce Scope 1 and Scope 2 emissions by 39% by 2030, using a 2020 baseline of approximately 2.6 million metric tons CO₂e. It also targets 100% renewable energy for operations by 2035.
Operational actions to reduce emissions include:
- Upgrading refrigeration systems and phasing down hydrofluorocarbons (HFCs)
- Switching to LED lighting and efficient HVAC systems
- Installing solar panels at warehouses and depots
Scope 3 emissions remain the greatest hurdle. Costco has proposed a 20% reduction in certain Scope 3 categories (excluding fuel) by 2030 vs. 2020. This relies heavily on supplier cooperation.
Third-party analysts estimate that Costco’s total operational footprint, including indirect sources, is 4–4.7 million metric tons of CO₂e. Meanwhile, Costco’s latest climate action plan report shows mixed but notable progress in its emissions profile.
- Scope 1 emissions rose 1.3% between FY22 and FY23, though this increase was lower than the company’s overall growth in sales and store space.
- Scope 2 market-based emissions dropped 3%. This decrease was due to more electricity being bought from clean energy sources.
- Scope 3 emissions rose by 1%. This is much lower than the 7% rise in merchandising sales. It shows early signs of better efficiency in the supply chain.

On ESG scores, S&P Global assigns Costco an ESG score of 36 (out of industry peers), reflecting its public disclosures.
Sustainability initiatives also include sourcing certified seafood, fair-trade coffee, and timber. Costco is expanding waste diversion efforts, recycling, and sustainable procurement.
ESG Actions and Progress
Costco’s Climate Action Plan includes:
- Rooftop solar
- Off-grid solar for depots
- EV charging stations
- Efficiency upgrades
The company also runs sustainable sourcing programs for seafood, coffee, and timber. These measures aim to lower emissions, reduce waste, and meet consumer demand for responsibly produced goods.
Why ESG Progress Matters for Investors
Investors see sustainability as part of long-term risk management. Energy efficiency cuts costs, renewable energy reduces exposure to fuel volatility, and Scope 3 engagement limits supply-chain risks. While these initiatives require upfront spending, they can strengthen Costco’s margins over time.
Large investors increasingly prefer stock companies with measurable climate targets like Costco’s. Its emission goals, clean energy commitments, and supplier engagement help it align with these expectations and support brand trust with customers.
Retail Rivalries: ESG as the New Competition Ground
Costco’s earnings come at a time of shifting dynamics in global retail. Inflationary pressures have eased somewhat compared to the highs of 2022–2023, but cost-sensitive consumers continue to seek value.
Bulk retailers like Costco are benefiting from these trends. Households are focused on saving money on food, household goods, and fuel. At the same time, ESG expectations are rising. Retailers face scrutiny over product sourcing, supply chain transparency, and emissions targets.
Costco competes with Walmart, Target, and Sam’s Club. These rivals are also pushing climate strategies and setting interim net-zero goals.
Industry analysts expect the global retail sector to grow by 4–5% each year until 2030. This growth will come from population increases, urbanization, and the rise of digital channels. Sustainability is now a key factor in competition. More consumers prefer companies that show strong climate commitments.
Outlook for Investors
Investors will now watch for guidance in Costco’s next earnings cycle:
- How much margin pressure is expected (especially with extended store hours and energy costs)
- Capex plans (how much will go toward growth vs. ESG projects)
- Progress on emissions targets (updates on reductions or new milestones)
- Membership growth and renewal stability
Costco’s ability to deliver both strong financials and steady ESG progress will determine its appeal to both traditional stock and sustainability-focused investors.
Bottom Line: Growth Meets Green Ambitions
Costco’s fourth quarter results underline its ability to deliver steady growth in a shifting retail landscape. Membership strength and operational efficiency remain clear advantages. Meanwhile, the company is advancing on its climate roadmap, though Scope 3 reductions will be difficult to achieve.
With this achievement, Costco offers a strong option for investors. It’s a solid retailer with dependable earnings while also aiming to improve its ESG profile. This effort helps it compete in a market where financial success and sustainability are both important.
The post Costco’s (COST Stock) $86B Quarter: Balancing Bulk Profits with Bold Net-Zero Goals appeared first on Carbon Credits.
Carbon Footprint
Climate-Linked Supply Chain Risk Is Already in Your P&L
The earnings calls that quietly reframed climate from sustainability question to operating risk.
Three earnings calls in the last 18 months tell the story without any help from a press release.
Hershey, May 2024: cocoa price exposure compresses margin, and the company attributes part of the cost shock to West African weather. Olam, July 2024: coffee climate exposure quantified in the annual report. JBS, January 2025: supply chain climate disclosures expanded materially in response to investor pressure and regulatory expectation. None of these companies issued the announcement as climate news. They issued it as financial news. The climate-linked supply chain risk did not arrive with a sustainability framing; it arrived as a P&L line.
You are probably reading this article because you suspect the same thing is happening to your business. This piece walks through what is showing up on which earnings calls, how procurement and finance leaders are quantifying the exposure, and what serious corporates are doing about it before the regulator asks.
Where climate risk has already appeared in earnings
The pattern is consistent across resource-intensive sectors. A weather event compresses supply, the price spikes, the cost flows through the income statement, and the analyst on the call asks whether the event is anomalous or structural. Increasingly, the honest answer is the second one.
Cocoa is the cleanest example. The 2023 to 2024 West African harvest fell sharply on the back of erratic rainfall and disease. Cocoa futures more than tripled. Companies with concentrated West African sourcing absorbed the cost; companies with diversified sourcing absorbed less. The exposure was not climate as ESG topic. It was climate as cost of goods.
Coffee follows the same pattern. Brazilian and Vietnamese harvests have moved on weather more sharply across the last several seasons. Roasters with long-tenor supplier relationships and origin diversification have managed the volatility; roasters with spot-market exposure have not. Wheat, sugar, palm oil, beef: the same dynamic in different commodities, a pattern the IPCC AR6 Working Group II report projects will intensify across agricultural systems through mid-century.
What this means: climate risk is no longer a footnote in the 10-K. It is a line item the CFO has to explain on the call.
The three commodity exposures that hit margin first
For most companies with material Scope 3 exposure, three exposures dominate the near-term P&L risk.
- Concentrated single-origin sourcing in a climate-vulnerable region. If your tier-one supply for any material commodity sits in one geography, you have a concentration risk that climate amplifies. Diversification across origins is the obvious hedge, but it takes years to build and requires relationships you cannot acquire by tender.
- Supplier financial fragility under climate stress. Smallholder farmers, who supply a large share of the global cocoa, coffee, and palm oil market, do not carry the balance sheets to absorb yield shocks. When yields collapse, they exit. When they exit, your supply base shrinks, and the surviving suppliers raise prices. The risk is structural, not cyclical.
- Logistics and storage exposure to extreme weather. Hurricane disruptions to Gulf shipping, drought-driven Panama Canal restrictions, flooding in European inland waterways: each of these has moved input costs in the last three years, a pattern documented in Munich Re’s natural catastrophe data. The exposure shows up as a one-quarter event in the financial press but accumulates over time on the cost line.
TCFD and ISSB disclosure changes
The disclosure architecture has now caught up with the risk. The Task Force on Climate-related Financial Disclosures, whose recommendations are now embedded in the ISSB’s IFRS S2 climate standard, requires companies to disclose climate-related risks across physical and transition categories, with quantification where possible.
For physical risk specifically (the climate-linked supply chain risk you are reading about), the disclosure must address both acute exposures (extreme weather events) and chronic exposures (gradual changes in temperature, precipitation, and growing seasons). The disclosure must address the time horizon over which the risk is material, the parts of the value chain exposed, and the financial impact under different scenarios.
The CSRD imposes similar requirements under European law, with double materiality (both financial and impact materiality) embedded in the assessment. The practical effect: your auditors and your investor relations team now need a defensible answer to the climate-linked supply chain risk question, and the answer needs to be quantified.
What procurement and finance can do now
Three actions matter near-term.
Map your exposure. Most companies do not have a clear view of which tier-one and tier-two suppliers sit in which climate-vulnerable geographies. Without the map, you cannot quantify the risk, and without the quantification, you cannot disclose it credibly. The map is the foundation, and World Resources Institute climate risk research provides useful public tooling to start.
Diversify and deepen, in that order. Diversification across origins reduces concentration risk, but the deeper move is to invest in the resilience of the suppliers you already have. Regenerative practices, agroforestry, soil health interventions: these reduce yield volatility under climate stress and protect your input cost trajectory.
Embed the climate spend inside procurement, not outside it. Treating climate risk as a sustainability cost line subordinates it to the ESG budget. Treating it as a procurement and resilience investment puts it in the budget that matters, which is the cost-of-goods budget that the CFO defends quarterly.
Nature-based supply chain investments are the asset class designed for exactly this purpose. They sit inside the value chain, they reduce climate-linked supply risk, they generate verifiable Scope 3 reductions, and they produce the documentation an auditor and a regulator can both test.
If you are quantifying climate-linked supply chain risk in advance of the next earnings cycle or the next disclosure period, the carbon and sustainability experts at Carbon Credit Capital can help you map your exposure and structure a Dual-Value Model response that addresses reduction, resilience, and disclosure-readiness in a single program. Schedule a consultation.
Carbon Footprint
Where should an SME start with a carbon action plan?
More and more small and medium-sized businesses are hearing the same question from their larger customers: What is your carbon footprint? That question now travels down entire supply chains, and it arrives next to tender requirements, certification criteria, and rising customer expectations.
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Carbon Footprint
Insetting vs Offsetting: Which Actually Counts Toward Your Scope 3 Targets
The accounting differences that decide whether your nature investment shows up in inventory, in BVCM, or nowhere at all.
The question reaches a procurement team about three weeks before the next sustainability committee meeting. Someone has read about insetting. Someone else has just signed off on an offset purchase. The CSO wants to know if the two are interchangeable. The answer is no, and the GHG Protocol Land Sector and Removals Standard is the reason why.
This article walks through what each term means at audit-grade specificity, what the standards actually say about how each gets counted, and how to decide which tool fits which target. The insetting vs offsetting question is one of the most-searched in corporate climate strategy, and one of the most poorly answered. By the end of this piece, you should be able to brief a committee on the difference without notes.
The two definitions, in plain English
Offsetting means buying carbon credits generated outside your value chain and retiring them against your residual emissions. The reduction happens somewhere else, financed by you, and the credit is the receipt.
Insetting means investing in emission reductions or removals inside your own value chain, typically with suppliers, where the reduction is directly linked to the products and services you buy. The reduction happens inside the boundary of your Scope 3 inventory, and the accounting treatment is fundamentally different.
The shorthand from the University of Oxford’s Nature-based Insetting Initiative is useful: insetting is what you do with the supply chain you have; offsetting is what you do with the supply chain you do not have.
What the GHG Protocol Land Sector Standard actually says
The GHG Protocol Land Sector and Removals Standard, finalised in 2024 after a multi-year pilot, sets the rules for how land-based emission reductions and removals enter corporate inventories. The Standard distinguishes between inventory accounting (Scope 1, 2, and 3) and project or intervention accounting (a separate methodology for crediting).
For insetting, the practical implication is that supplier-level interventions, when properly measured and attributed, can reduce your Scope 3 category 1 (purchased goods and services) emissions in your inventory. The reduction is not a credit retired against the inventory; it is a lower inventory number, period.
For offsetting, the credit is retired separately. It can be reported as a contribution toward a net-zero claim under the SBTi Beyond Value Chain Mitigation framework or as part of a VCMI Carbon Integrity claim, but it does not lower the inventory number.
A practical consequence: if your Science Based Target requires a 50% absolute reduction in Scope 3 emissions by 2030, insetting moves you toward the target. Offsetting does not. This single point of difference reshapes the procurement decision.
When insetting counts toward Scope 3 (and when it does not)
Insetting counts toward Scope 3 only when several conditions are met:
- The intervention must occur with an entity in your value chain.
- The emissions reduction or removal must be measured against a defensible baseline.
- The reduction must be attributed to your share of that supplier’s output, not double-counted with other buyers.
- It must follow the inventory accounting rules in the GHG Protocol Land Sector Standard, not the project accounting rules used to generate credits.
The most common failure mode is double counting. If your supplier sells the same reduction as a credit on the voluntary market and also reports it to you as a Scope 3 reduction, the math breaks. The Standard requires you to address this risk, typically by purchasing and retiring the supplier-issued credit as part of your inventory or by contractual provisions that prevent the supplier from selling the reduction twice.
When insetting does not count toward Scope 3: when the intervention sits with a supplier you do not buy from, when the baseline is not defensible, when the attribution is unclear, or when the documentation does not survive audit. Those cases default to Beyond Value Chain Mitigation, which is still useful but operates on a different ledger.
The procurement and supplier engagement question
Insetting is harder than offsetting. That is the unfashionable truth most buyers eventually confront. Offsetting is a transaction; insetting is a relationship.
To run an insetting program, you need supplier mapping precise enough to know which farms or facilities sit at which Scope 3 boundary. You need an engagement model that gets suppliers to participate, which usually requires multi-year commitments and shared economics. You need an MRV architecture that measures the right things and produces audit-ready documentation. And you need a contractual structure that prevents double counting and protects both sides.
The trade-off you receive in return is significant. Reductions count against your inventory rather than your residual. Supplier relationships deepen, which protects sourcing continuity. Yield and quality improvements often follow regenerative interventions, which reduces your input cost over time. And the regulatory file, under CSRD, CSDDD, EUDR, and the SBTi FLAG Guidance, is materially stronger.
Choosing the right tool for the right target
A practical decision rule. If your target is a science-based Scope 3 reduction and you operate in a FLAG sector or source FLAG commodities, insetting is the structurally correct tool. If your target is a net-zero claim that includes neutralising hard-to-abate residual emissions outside your value chain, BVCM via high-integrity offsets is the structurally correct tool. Most companies with material Scope 3 exposure need both, in different proportions, sequenced over time.
The sequencing matters. Insetting takes longer to stand up but produces a permanent reduction in the inventory. Offsetting can be transacted faster but does not change the inventory and now sits under tighter claim restrictions. Treat them as complementary tools with different jobs, not as substitutes. The Accountability Framework Initiative and the IUCN Global Standard for Nature-based Solutions both provide useful guardrails for the insetting side, with biodiversity, human rights, and benefit-sharing requirements that go beyond carbon math.
If you are mapping a Scope 3 reduction roadmap and need to scope which interventions count toward your inventory versus which sit in Beyond Value Chain Mitigation, the carbon and sustainability experts at Carbon Credit Capital can help you structure a nature-based supply chain investment program that fits your FLAG exposure, your target architecture, and your audit horizon. Schedule a consultation.
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