Sustainability & ESG: Measuring & Reducing Scope 3 Value Chain Emissions is Critical for Net Zero & Triple Bottom Line Success

GHG Emissions Across the Value Chain

Scope 1, 2, and 3 emissions are categories defined by the Greenhouse Gas (GHG) Protocol to help organizations measure and manage their greenhouse gas emissions comprehensively:

The above image has been taken from the United States Environmental Protection Agency “Scope 1 & Scope 2 Inventory Guidance” who have stated the original source to be “WRI/WBCSD & GHG Protocol’s Corporate Value Chain (Scope 3) Accounting and Reporting Standard”.

• Scope 1 (Direct Emissions): Are emissions from sources owned or controlled by an organization. They include fuel combustion in company-owned vehicles, onsite energy generation, and emissions from industrial processes. It is divided into four categories: stationary combustion, mobile combustion, fugitive emissions and process emissions. For example, a factory’s gas-powered boilers, air conditioning units or a fleet of company trucks would fall under Scope 1.
• Scope 2 (Indirect Energy Emissions): Are emissions from the generation of purchased electricity, steam, heating, or cooling used by an organization. While these emissions occur at the power plants that generate the energy, they are attributed to the organization using the energy. For instance, emissions associated with the electricity used in office buildings or manufacturing facilities fall into this scope.
• Scope 3 (Other Indirect Emissions): Are all indirect emissions – not included in scope 2 – that occur in the value chain of the reporting company, including both upstream and downstream emissions. In other words, emissions are linked to the company’s operations. Scope 3 includes emissions from suppliers, business travel, employee commuting, product use, waste disposal, and transportation of goods. These are often the hardest to measure but can represent the majority of an organization’s carbon footprint.
  • Upstream emissions may include the extraction and production of purchased goods and services, transportation and distribution before the company’s ownership, waste generated during operations, business travel, and employee commuting. Downstream emissions involve the distribution of sold products, the use of those products by consumers, end-of-life treatment, investments, and leased assets.
  • Measuring Scope 3 emissions is complex due to their broad and varied nature. It requires close collaboration with suppliers, service providers, logistics partners, and even customers. However, these emissions can represent over 70% of a company’s total emissions, especially in industries such as manufacturing, retail, fashion, food, and technology. Effective management includes conducting lifecycle assessments, engaging suppliers in emission reduction efforts, promoting circular economy practices, and encouraging product designs with lower environmental impact. Tackling Scope 3 emissions is not just a regulatory or reputational requirement—it’s a strategic step towards building a resilient, low-carbon business model aligned with global sustainability goals.

Note: Currently, Scope 4 & 5 Emissions are Not a Part of the GHG Protocol

• Proposed Scope 4 (Avoided Emissions): Informally used to capture avoided emissions (sometimes called “positive” or “beneficial” emissions), e.g., emissions savings from selling high‑efficiency products. Avoided emissions mean the reductions that can be achieved by making conscious choices in products, services, or processes. Scope 4 measures the lifecycle impact of actions that avoid emissions. Some examples include:
  • Using clean renewable energy sources by installing solar panels, windmills, etc.
  • Transitioning from internal combustion engines to electric vehicles.
  • Upgrading to more efficient equipment.
  • Opting for public transport or recycling.
  • Protecting forests to sequester carbon.

Scope 4 also reveals hidden emissions in specific industries:

• • Marketing: Emissions linked to increased demand driven by advertising.
  • Legal: Emissions associated with advising high-carbon industries.
  • Consulting: Impacts of guidance enabling resource-heavy activities.
  • Design: Emissions locked in by material and process decisions.
• Proposed Scope 5 (Created Emissions): These emissions (also dubbed “created” or “negative externality” emissions) cover:
  • Inefficient products: Appliances designed to be less efficient or deliberately unrepairable—e.g., top‑load washing machines that use 25–50% more energy than comparable models.
  • Planned obsolescence: Business models encouraging frequent replacement rather than longevity.
  • Regulatory evasion: Efforts to weaken or skirt climate regulations (such as the auto industry’s marketing push to reclassify vehicles as “light trucks” to avoid stricter fuel‑economy standards).
  • Lobbying & disinformation: Activities that slow down or obstruct broader climate action—funding climate‑denial groups, political lobbying against emissions standards, or public campaigns that muddy the scientific consensus.

This approach aims to capture a company’s negative contributions over time, discouraging greenwashing by holding firms accountable not just for emissions they directly report, but also for the additional climate harm caused by their broader behavior.

The above has been taken from an article by Ivy Byrd on the Medium titled “Is it Time for Scope 5 Carbon Emissions?” published on 25 January 2024.

What is the Relevance of GHG Emissions to Sourcing & Procurement, Manufacturing, Supply Chain & Logistics Operations? 

GHG emissions are critically relevant because they encourage responsible, ESG-integrated, sustainable and circular operations, while directly influencing environmental sustainability, regulatory compliance, corporate social responsibility, and triple bottom line business performance. Managing these GHG emissions is essential for mitigating climate change and aligning with global sustainability goals.

Responsible Procurement: Procurement decisions significantly impact an organization’s carbon footprint. By sourcing materials with lower embedded GHG emissions, such as recycled or sustainably produced goods, companies can reduce upstream Scope 3 emissions. Partnering with suppliers committed to sustainable practices and requiring transparency in emissions reporting also fosters accountability and drives emission reductions across the supply chain.

Sustainable Manufacturing: Manufacturing is often a major source of Scope 1 and 2 emissions from energy use and industrial processes. Implementing energy-efficient technologies, switching to renewable energy, and optimizing waste management can lower emissions and operational costs. Furthermore, designing products with sustainability in mind—reducing resource intensity and enabling recyclability—ensures lower lifecycle emissions. Compliance with increasingly stringent environmental regulations, such as carbon taxes or emissions trading schemes, is also vital to avoid legal and financial risks.

Circular Supply Chain Operations: A significant portion of emissions often arises from global supply chain activities, including transportation, logistics, and distribution. Optimizing routes, transitioning to low-carbon transportation methods, embedding circularity and engaging suppliers in emission reduction initiatives are crucial for managing Scope 3 emissions.