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Tesla's Avoided Emissions Are Up to 49% Overstated, A Study Claims

Tesla has established itself as a leader in the fight against climate change. It often emphasizes its role in cutting greenhouse gas (GHG) emissions by promoting electric vehicles (EVs).

In 2023, the company claimed its fleet helped avoid 20 million metric tons of carbon dioxide equivalent (CO2e) emissions. A recent study by Greenly, a firm specializing in carbon footprint measurement and management, however, questions this figure. They estimate the real avoided emissions at 10.2 to 14.4 million metric tons, which is 28-49% lower than Tesla’s claims.

What’s the basis for Greenly’s claim? Let’s find out, and how this may impact Tesla’s position and the entire industry.

Breaking Down Tesla’s Avoided Emissions Calculations

Tesla calculates avoided emissions by comparing its EV fleet to a similar fleet of ICE (internal combustion engine) vehicles. The process follows these steps:

  1. Fleet Size Calculation. Using sales data, Tesla estimates the number of active vehicles in its fleet. By the end of 2023, Greenly estimated this number to be around 5.35 million Teslas worldwide.
  2. ICE Emissions Comparison. Tesla assumes that ICE vehicles emit an average of 445 grams of CO2e per mile in the U.S. and 459 grams in Europe, based on data from Consumer Reports.
  3. EV Emissions Calculation. Tesla estimates U.S. emissions from electricity generation at 116 gCO2e/mile. But Greenly, using IEA data, finds a much higher figure of 206 gCO2e/mile.
  4. Manufacturing Emissions. Tesla estimates that making an ICE vehicle releases 10 metric tons of CO2e. In contrast, an EV generates 20 metric tons, mainly because of battery production.

Tesla found that in 2023, swapping ICE vehicles for its EVs cut emissions by 20 million metric tons. Now, let’s uncover Greenly’s calculations.

Greenly’s Findings and Discrepancies: A Reality Check for Tesla?

Greenly reanalyzed Tesla’s approach using independent emissions factors and found significant discrepancies. These include the following analysis findings:

Overestimation of ICE Vehicle Emissions. Tesla’s emissions factor for ICE vehicles is 445-459 gCO2e/mile. This is much higher than the UK standard for large diesel cars, which is 415 gCO2e/mile. This difference suggests that Tesla might have overstated the emissions avoided.

Underestimation of Grid Emissions. Tesla uses a lower emissions factor for electricity at 116 gCO2e/mile. In contrast, the IEA calculates it at 206 gCO2e/mile. This suggests Tesla might have underestimated the emissions from charging its EVs.

Mileage Assumptions: Tesla assumes its EVs travel 200,000 miles over 17 years. If this assumption were lowered to 150,000 miles, Greenly found that avoided emissions would drop significantly to 6.9 million metric tons.

  • After adjustments, Greenly estimated Tesla’s real avoided emissions at 10.2-14.4 million metric tons. This is much lower than Tesla’s reported 20 million metric tons.

What This Means for the EV Industry’s Climate Goals

EVs are widely recognized as key to reducing transportation-related GHG emissions. In 2023, the sector was the world’s second-largest source of GHG emissions with 8.24 GtCO₂. Road vehicles are the top polluters.

By 2023, the growing use of EVs helped cut CO₂ emissions from new vehicles by 11%, bringing the average down to 319 grams per mile—the lowest ever recorded. The chart below shows the difference in GHG emissions for an EV and gas-powered car.

GHG emissions of EV vs gasoline car
Source: EPA

However, accurate carbon emissions accounting is crucial. It helps maintain credibility and shows the industry’s real environmental impact.

Tesla’s potentially inflated claims could have several consequences for the broader EV market

Regulatory Scrutiny:

Exaggerating avoided emissions may result in more regulatory scrutiny of EV makers’ climate claims. If Tesla’s reports are misleading, policymakers might require stricter checks on EV carbon reduction claims.

Investor and Consumer Trust:

The EV industry has gained from high public and investor trust. This confidence comes from the promise of major emission cuts. Greenly’s findings might hurt this trust. This could make investors wary of supporting EV companies. It can also lead consumers to doubt the environmental benefits of leaving ICE vehicles behind.

Competitive Pressures:

Tesla’s competitors, including BYD, Rivian, and traditional automakers like Ford and BMW, are also marketing their EVs as low-emission alternatives. If a big player is caught exaggerating claims, it could push all EV makers to get third-party checks on their environmental impact.

The Billion-Dollar Carbon Credit Question

One of Tesla’s key revenue streams has been the sale of carbon credits to other automakers that do not meet emissions standards. Since Tesla produces only electric vehicles, it accumulates large amounts of regulatory credits.

The EV maker then sells these credits to companies still producing gasoline-powered cars. Tesla’s carbon credit sales have earned billions, with over $10.4 billion since 2017. Last year’s revenue was record high. This profit helps keep the company strong, especially in years with lower vehicle margins.

Tesla annual carbon credit revenue 2024

If Tesla’s avoided emissions claims are found to be inflated, it could undermine the credibility of its carbon credit sales. Regulatory bodies may set stricter rules for issuing and verifying carbon credits. This change could make it tougher for Tesla to profit from this market.

Also, automakers buying these credits might want more transparency. This helps them confirm they meet rules without depending on possibly inflated numbers. Any disruptions in this market could significantly impact Tesla’s bottom line.

Tesla’s Reputation at Stake: Environmental Claims Under Fire

Greenly’s findings come at a bad time for Tesla. The company already faces reputational issues because of CEO Elon Musk’s political activities. Plus, its stock price has dropped sharply. Musk’s controversial comments and changing political views have turned off some customers and investors. This has hurt Tesla’s brand image.

Moreover, Tesla’s stock has struggled in recent months, with share prices down over 25% year-to-date. The combination of financial struggles, leadership controversies, and now questions about its environmental impact could further erode confidence in Tesla’s long-term growth potential.

Moreover, governments worldwide are increasing scrutiny of corporate sustainability claims. If Tesla overstated its emissions reductions, it might face legal issues. This could include fines or losing access to incentive programs.

The Need for Transparency in Carbon Accounting

Tesla’s differences in avoided emissions estimates show a bigger problem: the EV industry needs independent and standardized carbon accounting. Without clear, verifiable methods for calculating avoided emissions, companies could mislead stakeholders about their true climate impact.

Greenly’s report says manufacturers should use 3rd-party audits for emissions claims. This is like how financial audits work to help keep their credibility. More rigorous carbon accounting would help:

  • Ensure that avoided emissions are not exaggerated to attract investment or government incentives.
  • Provide policymakers with reliable data to shape EV-related regulations.
  • Prevent backlash similar to the Dieselgate scandal, where automakers manipulated emissions data.

Tesla plays a big role in boosting EV adoption and cutting emissions. However, it’s important to check how accurate its environmental claims are. The Greenly report raises concerns about transparency in EV industry reporting.

As governments and consumers push for more rigorous climate accountability, automakers must ensure their emissions calculations are accurate and independently verified.

The post Tesla’s Avoided Emissions Are Up to 49% Overstated, A Study Claims appeared first on Carbon Credits.

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Finding Nature Based Solutions in Your Supply Chain

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“…Protecting nature makes our business more resilient…”

For companies with land, water, food, fiber, or commodity exposure, the supply chain may be the most practical place to turn nature from a risk into an operating asset.

Your supply chain already has a nature strategy. It may be undocumented. It may live in procurement files, supplier contracts, commodity maps, and one spreadsheet nobody opens without coffee. But it exists.

If your business depends on farms, forests, water, soil, packaging, rubber, timber, fibers, minerals, or food ingredients, nature is part of your operating system. The question is whether you manage that system with intent, or discover it during a disruption, audit, or difficult board question.

That is why more companies are asking how to find Nature-Based Solutions in Your Supply Chain. Do not begin by shopping for offsets. Begin by asking where nature already affects cost, continuity, emissions, regulatory exposure, and supplier resilience.

What Nature-Based Solutions in Your Supply Chain Means

The European Commission defines nature-based solutions as approaches inspired and supported by nature that are cost-effective, deliver environmental, social, and economic benefits, and help build resilience. They should also benefit biodiversity and support ecosystem services.

In supply-chain terms, that becomes practical. Nature-based solutions in your supply chain can include agroforestry in cocoa, coffee, rubber, or palm supply chains. They can include soil health programs for food ingredients, watershed restoration near water-intensive operations, mangrove restoration linked to coastal sourcing regions, and avoided deforestation in forest-linked commodities.

The key test is business relevance. If your procurement team relies on a landscape, watershed, crop, or supplier base, that is where opportunity may sit. The best projects do not hover outside the business like a framed certificate. They plug into the system that already produces your revenue.

Why the Boardroom Should Care

For many companies, the largest climate and nature exposure sits outside direct operations. The GHG Protocol Scope 3 Standard gives companies a method to account for and report value-chain emissions across sectors. Purchased goods, land use, transport, supplier energy, and product use can make direct emissions look like the visible tip of a very large iceberg.

The Taskforce on Nature-related Financial Disclosures notes that many nature-related dependencies, impacts, risks, and opportunities arise upstream and downstream. That is why nature-based supply chain investments matter to boards. You are managing supply security, audit readiness, investor confidence, and regulatory preparedness.

For companies exposed to EU markets, this also connects to rules and expectations such as CSRD, CSDDD, EUDR, and SBTi FLAG.

Step One: Map Where You Touch Land, Water, and Living Systems

Finding Nature-Based Solutions in Your Supply Chain starts with mapping, not marketing.

Begin with procurement and Scope 3 data. Which categories carry high spend, high emissions, or high sourcing risk? Which suppliers depend on agriculture, forestry, mining, water-intensive processing, or land conversion? Which regions face water stress, heat, flood risk, soil degradation, deforestation, or biodiversity pressure?

The Science Based Targets Network uses a clear process for companies: assess, prioritize, set targets, act, and track. That sequence keeps companies from treating nature as a mood board. You identify where the business has exposure, then decide where intervention can create measurable value.

Step Two: Look for Operational Value Before Carbon Value

This is the center of CCC’s Dual-Value Model. A nature-based supply chain investment should do useful work for the business before anyone counts the carbon.

Agroforestry may improve farmer resilience, shade crops, protect soil, and reduce pressure on forests. Watershed restoration may reduce water risk for beverage, textile, or manufacturing sites. Soil health programs may improve the stability of agricultural inputs.

Carbon and sustainability value can still be created. In some cases, the project may support Scope 3 insetting. In others, it may generate verified carbon credits. Sometimes the main value may be resilience, readiness, and better supplier data.

The IPCC has found that ecosystem-based adaptation can reduce climate risks to people, biodiversity, and ecosystem services, with multiple co-benefits, while also warning that effectiveness declines as warming increases. That is a sober argument for acting early.

Step Three: Separate Insetting, Offsetting, and Resilience

Nature-based solutions in your supply chain are not automatically carbon credits. They are not automatically Scope 3 reductions either.

An insetting opportunity usually sits inside or close to your value chain. It may support Scope 3 reporting if the accounting rules, project boundaries, supplier connection, and data quality are strong enough.

An offsetting opportunity usually involves verified credits outside your value chain. High-quality credits can still play a role for residual emissions, but they should not distract from direct reductions or credible value-chain work.

A resilience opportunity may deliver business value even if you cannot claim a Scope 3 reduction immediately. That may include water security, supplier capacity, land restoration, biodiversity protection, or regulatory readiness.

Gold Standard’s Scope 3 value-chain guidance focuses on reporting emissions reductions from interventions in purchased goods and services. Verra’s Scope 3 Standard Program is being developed to certify value-chain interventions and issue units for companies’ emissions accounting. The direction is clear: stronger evidence, tighter boundaries, and more disciplined claims.

Step Four: Design for Audit-Readiness From the Beginning

Weak data is where promising nature projects go to become expensive anecdotes.

Before public claims are made, you need to know the baseline. What would have happened without the project? Who owns or manages the land? Which suppliers are involved? How will outcomes be measured? How will leakage, permanence, and double counting be addressed?

The GHG Protocol Land Sector and Removals Standard gives companies methods to quantify, report, and track land emissions, CO2 removals, and related metrics. This matters because land projects are rarely neat. Farms change practices. Suppliers shift volumes. Weather changes outcomes.

What Recent Corporate Examples Show

Recent case studies show that supply-chain nature work is becoming more serious, and more scrutinized.

Reuters has reported on insetting to reduce emissions within supply chains, including examples linked to Reckitt, Danone, Nestlé, Earthworm Foundation, and Nature-based Insights. The same article highlights familiar problems: measurement, double counting, supplier incentives, and credibility.

Reuters has also reported on companies using the Science Based Targets Network process to examine nature impacts. GSK, Holcim, and Kering were among the first companies with validated science-based targets for nature.

The Financial Times has covered the promise and difficulty of soil carbon in corporate supply chains, including a PepsiCo example in India where yields reportedly increased while greenhouse gas emissions fell. The lesson is that carbon, soil, biodiversity, farmer economics, and measurement need to be handled together.

A Practical Screening Checklist

A supply-chain nature-based solution deserves deeper review when you can answer yes to most of these questions:

  • Does it sit in or near a material supply-chain hotspot?
  • Does it address a real business risk?
  • Can you connect it to supplier behavior, land management, or sourcing practices?
  • Can the outcomes be measured?
  • Are the claim boundaries clear?
  • Does it support Scope 3 strategy, SBTi FLAG, CSRD, CSDDD, EUDR, or investor reporting needs?
  • Are permanence, leakage, land rights, and community issues addressed?

Build the Asset, Then Make the Claim

Finding Nature-Based Solutions in Your Supply Chain is about identifying where your business already depends on living systems, then designing interventions that make those systems more resilient, measurable, and commercially useful.

For companies with material Scope 3 exposure, the right project can support supplier resilience, emissions strategy, regulatory readiness, and credible climate communication. The wrong project can become a glossy story with a weak audit trail.

Carbon Credit Capital helps companies design nature-based carbon and sustainability assets that embed directly into corporate supply chains. Through CCC’s Dual-Value Model, you can assess where sustainability investment may support operational resilience, Scope 3 insetting eligibility, regulatory readiness, and high-quality carbon or sustainability value.

Schedule your consultation with the carbon and sustainability experts at Carbon Credit Capital to explore how nature-based supply chain investments can support your next stage of climate strategy.

Sources

  1. European Commission: Nature-based solutions
  2. GHG Protocol: Corporate Value Chain Scope 3 Standard
  3. TNFD: Guidance on value chains
  4. European Commission: Corporate Sustainability Reporting
  5. European Commission: Corporate Sustainability Due Diligence
  6. European Commission: Regulation on Deforestation-free Products
  7. SBTi: Forest, Land and Agriculture FLAG
  8. Science Based Targets Network: Take Action
  9. IPCC AR6 WGII Summary for Policymakers
  10. Gold Standard: Scope 3 Value Chain Interventions Guidance
  11. Verra: Scope 3 Standard Program
  12. GHG Protocol: Land Sector and Removals Standard
  13. Reuters: Can insetting stack the cards towards more sustainable supply chains?
  14. Reuters: Three companies put their impacts on nature under a microscope
  15. Financial Times: The dubious climate gains of turning soil into a carbon sink

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How Climate Change Is Raising the Cost of Living

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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

A light bulb, a pen, a calculator and some copper euro cent coins lie on top of an electricity bill

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:

  1. Estimate your carbon footprint to better understand the emissions connected to your lifestyle and activities.
  2. Create a plan to gradually reduce emissions through energy efficiency, cleaner technologies, and more sustainable choices.
  3. 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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Carbon credit project stewardship: what happens after credit issuance

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A carbon credit purchase is not a transaction that closes at issuance. The credit may be retired, the certificate filed, and the reporting box ticked. But on the ground, in the forest, in the field, and in the community, the work continues. It endures for years. In many cases, for decades.

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