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As global temperatures persist in rising to concerning new highs, national governments, multinational corporations, small businesses, and individuals are all urgently exploring ways to substantially reduce greenhouse gas emissions and mitigate climate change risks. One increasingly popular and impactful method that is gaining significant traction is the use of carbon credits to provide powerful financial incentives for businesses and consumers to cut emissions and support the rapid development of renewable energy sources.

This informative post is the 4th installment in our acclaimed new series based on our organization’s highly regarded 2023 Climate Change and Carbon Markets Annual Report.

The previous posts in this illuminating series so far have been:

In this post, we will take a closer look at various energy sources and strategies, emphasizing the importance of diverse solutions like fuel switching, renewables, nuclear energy, and carbon capture to combat climate change and achieve a sustainable energy future..

The Wedge Theory – A Portfolio Approach to Emissions Reductions

Climate experts propose a “wedge theory” framework to conceptualize the portfolio of solutions needed to reduce greenhouse gas (GHG) emissions and stabilize the climate. This approach requires deploying diverse technologies and strategies, each providing a “wedge” of avoided emissions adding up to the total reductions needed. The original theory called for 7 wedges, but emissions have continued rising, so 9 are now required. Wedges include renewables, nuclear energy, fuel switching, energy efficiency, forests and soils, and carbon capture and storage.

Understanding Fuel Switching

Fuel switching entails replacing carbon-intensive fuels like coal and oil with less carbon-intensive ones like natural gas. For example, switching from coal to gas can decrease power plant emissions by 60% per kilowatt-hour.

  • Coal: 25 metric tons carbon per terajoule
  • Oil: 20 metric tons carbon per terajoule
  • Natural Gas: 14 metric tons carbon per terajoule

So switching to gas provides a “bridge” to zero-carbon energy systems. The shale gas boom enabled by hydraulic fracturing accelerated this trend in the United States. However, the environmental impacts of techniques like fracking cannot be disregarded.

Nuclear Energy: A Renewable Source?

Nuclear energy, often hailed as a clean energy source, is derived from the process of splitting uranium atoms through fission. This fission process heats water to produce steam, which in turn spins turbines, ultimately generating electricity. The entire procedure emits no greenhouse gases, making it an attractive option in the fight against climate change. However, the question of whether nuclear energy can be classified as “renewable” remains a topic of contention among experts and environmentalists. While it offers a more sustainable alternative to fossil fuels, concerns about radioactive waste, the finite nature of uranium resources, and potential safety risks make its categorization as a renewable energy source debatable.

Harnessing Inexhaustible Sources: The Role of Renewables

Renewable energy derived from inexhaustible natural sources like sunlight, wind, and water offers immense potential with little to no GHG emissions. Growing renewables is crucial for climate change mitigation.

Solar Energy: Ever Improving Technologies

Solar energy, a cornerstone of renewable power sources, harnesses the abundant energy radiated by the sun. This is achieved primarily through two technologies: photovoltaics (PV) and concentrated solar plants. Photovoltaic cells, commonly known as solar panels, are designed to directly convert sunlight into electricity. They achieve this transformation using specially crafted semiconductor materials that capture photons and initiate an electric current. One of the standout features of solar PV systems is their adaptability. They can be installed on a grand scale for utility purposes, powering entire communities or even cities. Alternatively, they can be set up in smaller, distributed configurations, such as on rooftops of individual homes, allowing homeowners to generate their own electricity and even feed excess power back into the grid. As technology continues to advance, the efficiency and applications of solar energy are bound to expand, making it an even more integral part of our energy landscape.

Geothermal Energy: Tapping into Earth’s Heat

Geothermal energy is a remarkable form of power that taps into the Earth’s innate thermal energy stored beneath its crust. This energy originates from the radioactive decay of materials deep within the planet and the original heat from Earth’s formation. In regions with pronounced subsurface temperatures, often marked by volcanic or tectonic activity, the potential for generating geothermal electricity is especially high. The typical process involves accessing hot water reservoirs located below the surface. This water, when pumped up through specialized wells, transforms into steam due to the pressure difference. This steam then propels turbine generators, converting the Earth’s heat into usable electricity. As a sustainable and environmentally friendly energy source, geothermal power offers a consistent and reliable alternative to more conventional power generation methods.

Hydro and Wind: Leveraging Flowing Resources

Hydropower converts the kinetic energy of flowing water into electricity using turbine generators. Dams with reservoirs
offer reliable large-scale hydro electricity, while run-of-river systems have lower impact.

Wind power harnesses the kinetic energy of wind, again turning turbines to produce power. Onshore and offshore wind farms are rapidly expanding as costs plummet.

But hydropower and wind face challenges in location constraints, transmission needs, and intermittency. Still, they are vital and growing pieces of the renewables puzzle.

Bioenergy: Leveraging Natural Carbon Sinks

Bioenergy stands out as a unique form of renewable energy because it taps into the chemical energy naturally stored within organic materials. This energy is derived from both living organisms, like plants and animals, and those that have recently died. A diverse range of sources, including forest biomass, residues from agricultural activities and livestock, as well as various waste streams, can be converted into renewable electricity, fuels for transportation, and heat for homes and industries.

However, it’s essential to approach bioenergy with a discerning eye. While it holds great potential, not every form of bioenergy is environmentally beneficial. For instance, clearing vast expanses of forests to cultivate energy crops can lead to significant carbon emissions and disrupt delicate ecosystems. This not only negates the carbon benefits but also poses threats to biodiversity. Looking at the positive aspects, bioenergy can be obtained from waste biomass or cultivated on lands that are not suitable for other agricultural purposes. This not only provides a sustainable solution, but also has a positive impact on the climate. Such practices ensure that greenhouse gas emissions are minimized, making bioenergy a viable and eco-conscious energy alternative.

Waste-to-Energy: Capturing Landfill Gas

Landfill gas (LFG) projects prevent methane emissions from landfills by capturing methane for flaring or energy use. Methane is a potent greenhouse gas, so converting it to CO2 via combustion provides immediate climate benefits. LFG projects also reduce local air pollution.
Captured LFG can be used onsite for electricity, heat, or even vehicle fuel. These projects provide environmental and socio-economic benefits to communities near landfills.

Sequestering Carbon: Storing Away Emissions

Carbon capture, utilization, and storage (CCUS) aims to balance continued fossil fuel use with equivalent carbon storage elsewhere. CCUS removes CO2 from large point sources like power plants or directly extracts CO2 from ambient air. The carbon is then stored via injection into geologic formations, old oil and gas reservoirs, or chemical conversion into stable solids.
While technologically feasible, CCUS still faces challenges with scaling up infrastructure, ensuring permanent storage, and lowering costs. More investment is needed to develop CCUS into a viable wedge.

The All-Out Effort Needed

Bending the global emissions curve downwards requires urgent economy-wide action across all sectors. Intelligently leveraging fuel switching, nuclear energy, renewables, bioenergy, and eventually carbon storage provides paths to a carbon-neutral future. But the clock is ticking. Successfully activating these climate wedges demands policies, partnerships, and funding on a massive scale. Our future depends on rising to this great challenge.

To learn more about the role fuel switching plays in fighting climate change contact us for the full report.

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Photo by Jason Blackeye on Unsplash

Carbon Footprint

Climate-Linked Supply Chain Risk Is Already in Your P&L

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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.

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Carbon Footprint

Where should an SME start with a carbon action plan?

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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

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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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