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
The real cost of 1 tonne of CO2: Translating carbon into hectares
Every business carbon footprint report ends with a number, the amount of carbon emissions produced by the business, less the amount of carbon reduced and offset, given in tonnes of CO₂. Many of the people who sign off on that number, including those who paid for it, cannot picture what it represents on the ground. A tonne is a unit of mass. CO₂ is invisible. The link between the amount offset in the report and a real piece of restored forest somewhere in the world is almost never indicated.
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Carbon Footprint
Finding Nature Based Solutions in Your Supply Chain
Carbon Footprint
How Climate Change Is Raising the Cost of Living
Americans are paying more for insurance, electricity, taxes, and home repairs every year. What many people may not realize is that climate change is already one of the drivers behind those rising costs.
For many households, climate change is no longer just an environmental issue. It is becoming a cost-of-living issue. While climate impacts like melting glaciers and shrinking polar ice can feel distant from everyday life, the financial effects are already showing up in monthly budgets across the country.
Today, a larger share of household income is consumed by fixed costs such as housing, insurance, utilities, and healthcare. (3) Climate change and climate inaction are adding pressure to many of those expenses through higher disaster recovery costs, rising energy demand, infrastructure repairs, and increased insurance risk.
The goal of this article is to help connect climate change to the everyday financial realities people already experience. Regardless of where someone stands on climate policy, it is important to recognize that climate change is already increasing costs for households, businesses, and taxpayers across the United States.
More conservative estimates indicate that the average household has experienced an increase of about $400 per year from observed climate change, while less conservative estimates suggest an increase of $900.(1) Those in more disaster-prone regions of the country face disproportionate costs, with some households experiencing climate-related costs averaging $1,300 per year.(1) Another study found that climate adaptation costs driven by climate change have already consumed over 3% of personal income in the U.S. since 2015.(9) By the end of the century, housing units could spend an additional $5,600 on adaptation costs.(1)
Whether we realize it or not, Americans are already paying for climate change through higher insurance premiums, energy costs, taxes, and infrastructure repairs. These growing expenses are often referred to as climate adaptation costs.
Without meaningful climate action, these costs are expected to continue rising. Choosing not to invest in climate action is also choosing to spend more on climate adaptation.
Here are a few ways climate change is already increasing the cost of living:
- Higher insurance costs from more frequent and severe storms
- Higher energy use during longer and hotter summers
- Higher electricity rates tied to storm recovery and grid upgrades
- Higher government spending and taxpayer-funded disaster recovery costs
The real debate is not whether climate change costs money. Americans are already paying for it. The question is where we want those costs to go. Should we invest more in climate action to help reduce future climate adaptation costs, or continue paying growing recovery and adaptation expenses in everyday life?
How Climate Change Is Increasing Insurance Costs
There is one industry that closely tracks the financial impact of natural disasters: insurance. Insurance companies are focused on assessing risk, estimating damages, and collecting enough revenue to cover losses and remain financially stable.
Comparing the 20-year periods 1980–1999 and 2000–2019, climate-related disasters increased 83% globally from 3,656 events to 6,681 events. The average time between billion-dollar disasters dropped from 82 days during the 1980s to 16 days during the last 10 years, and in 2025 the average time between disasters fell to just 10 days. (6)
According to the reinsurance firm Munich Re, total economic losses from natural disasters in 2024 exceeded $320 billion globally, nearly 40% higher than the decade-long annual average. Average annual inflation-adjusted costs more than quadrupled from $22.6 billion per year in the 1980s to $102 billion per year in the 2010s. Costs increased further to an average of $153.2 billion annually during 2020–2024, representing another 50% increase over the 2010s. (6)
In the United States, billion-dollar weather and climate disasters have also increased significantly. The average number of billion-dollar disasters per year has grown from roughly three annually during the 1980s to 19 annually over the last decade. In 2023 and 2024, the U.S. recorded 28 and 27 billion-dollar disasters respectively, both setting new records. (6)
The growing impact of climate change is one reason insurance costs continue to rise. “There are two things that drive insurance loss costs, which is the frequency of events and how much they cost,” said Robert Passmore, assistant vice president of personal lines at the Property Casualty Insurers Association of America. “So, as these events become more frequent, that’s definitely going to have an impact.” (8)
After adjusting for inflation, insurance costs have steadily increased over time. From 2000 to 2020, insurance costs consistently grew faster than the Consumer Price Index due to rising rebuilding costs and weather-related losses.(3) Between 2020 and 2023 alone, the average home insurance premium increased from $75 to $360 due to climate change impacts, with disaster-prone regions experiencing especially steep increases.(1) Since 2015, homeowners in some regions affected by more extreme weather have seen home insurance costs increased by nearly 57%.(1) Some insurers have also limited or stopped offering coverage in high-risk areas.(7)
For many families, rising insurance costs are no longer occasional financial burdens. They are becoming recurring monthly expenses tied directly to growing climate risk.
How Rising Temperatures Increase Household Energy Costs

The financial impacts of climate change extend beyond insurance. Rising temperatures are also changing how much energy Americans use and how utilities plan for future electricity demand.
Between 1950 and 2010, per capita electricity use increased 10-fold, though usage has flattened or slightly declined since 2012 due to more efficient appliances and LED lighting. (3) A significant share of increased energy demand comes from cooling needs associated with higher temperatures.
Over the last 20 years, the United States has experienced increasing Cooling Degree Days (CDD) and decreasing Heating Degree Days (HDD). Nearly all counties have become warmer over the past three decades, with some areas experiencing several hundred additional cooling degree days, equivalent to roughly one additional degree of warmth on most days. (1) This trend reflects a warming climate where air conditioning demand is increasing while heating demand generally declines. (4)
As temperatures continue rising, households are expected to spend more on cooling than they save on heating. The U.S. Energy Information Administration (EIA) projects that by 2050, national Heating Degree Days will be 11% lower while Cooling Degree Days will be 28% higher than 2021 levels. Cooling demand is projected to rise 2.5 times faster than heating demand declines. (5)
These projections come from energy and infrastructure experts planning for future electricity demand and grid capacity needs. Utilities and grid operators are already preparing for higher peak summer electricity loads caused by rising temperatures. (5)
Longer and hotter summers also affect how homes and buildings are designed. Buildings constructed for past climate conditions may require upgrades such as larger air conditioning systems, stronger insulation, and improved ventilation to remain comfortable and energy efficient in the future. (10)
For many households, this means higher monthly utility bills and potentially higher long-term home improvement costs as temperatures continue to rise.
How Climate Change Affects Electricity Rates
On an inflation-adjusted basis, average U.S. residential electricity rates are slightly lower today than they were 50 years ago. (2) However, climate-related damage to utility infrastructure is creating new upward pressure on electricity costs.
Electric utilities rely heavily on above-ground poles, wires, transformers, and substations that can be damaged by hurricanes, storms, floods, and wildfires. Repairing and upgrading this infrastructure often requires substantial investment.
As a result, utilities are increasing electricity rates in response to wildfire and hurricane events to fund infrastructure repairs and future mitigation efforts. (1) The average cumulative increase in per-household electricity expenditures due to climate-related price changes is approximately $30. (1)
While this increase may appear modest today, utility costs are expected to rise further as climate-related infrastructure damage becomes more frequent and severe.
How Climate Disasters Increase Government Spending and Taxes
Extreme weather events also damage public infrastructure, including roads, schools, bridges, airports, water systems, and emergency services infrastructure. Recovery and rebuilding costs are often funded through taxpayer dollars at the federal, state, and local levels.
The average annual government cost tied to climate-related disaster recovery is estimated at nearly $142 per household. (1) States that frequently experience hurricanes, wildfires, tornadoes, or flooding can face even higher public recovery costs.
These expenses affect taxpayers whether they personally experience a disaster or not. Climate-related recovery spending can increase pressure on public budgets, emergency management systems, and infrastructure funding nationwide.
Reducing Climate Costs Through Climate Action
While this article focuses on the growing financial costs associated with climate change, the issue is not only about money for many people. It is also about recognizing our environmental impact and taking responsibility for reducing it in order to help preserve a healthy planet for future generations.
While individuals alone cannot solve climate change, collective action can help reduce future climate adaptation costs over time.
For those interested in taking action, there are three important steps:
- Estimate your carbon footprint to better understand the emissions connected to your lifestyle and activities.
- Create a plan to gradually reduce emissions through energy efficiency, cleaner technologies, and more sustainable choices.
- Address remaining emissions by supporting verified carbon reduction projects through carbon credits.
Carbon credits are one of the most cost-effective tools available for climate action because they help fund projects that generate verified emission reductions at scale. Supporting global emission reduction efforts can help reduce the long-term impacts and costs associated with climate change.
Visit Terrapass to learn more about carbon footprints, carbon credits, and climate action solutions.
The post How Climate Change Is Raising the Cost of Living appeared first on Terrapass.
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