Scope 1, 2, and 3 Emissions Explained (For Beginners)
If you’re trying to break into sustainability or ESG
You’ve probably seen this requirement everywhere:
“Experience with Scope 1, 2, and 3 emissions”
But what do these actually mean?
A simple breakdown.
What Are Scope 1, 2, and 3 Emissions?
They are categories used to measure a company’s greenhouse gas (GHG) emissions.
Think of them as: Where emissions are coming from.
Scope 1- Direct Emissions
These come from sources a company owns or controls.
Examples: Fuel used in company vehicles, On-site gas or diesel use, Equipment emissions.
Basically, emissions you create directly.
Scope 2- Indirect Energy Emissions
These come from purchased energy.
Examples: Electricity used in buildings, and Heating or cooling systems.
You didn’t create the energy, but you use it.
Scope 3- Indirect Value Chain Emissions
This is the biggest and most complex category.
It includes emissions from: Suppliers and production, Transportation and logistics, Business travel, Employee commuting, Product use and disposal.
Everything else connected to your operations.
Why Scope 3 Matters Most
For many companies:
Scope 3 makes up the majority of total emissions
But it’s also the hardest to track and manage.
Why This Matters for Your Career
If you’re entering sustainability or ESG:
Understanding Scope 1, 2, and 3 helps you: Work with carbon and ESG data, Support sustainability reporting, Analyze environmental impact, and Contribute to Net Zero strategies
This is why many jobs ask for it.
How to Start Learning This
You don’t need experience to begin.
Start with:
Learning basic carbon accounting concepts
Reviewing sustainability or ESG reports
Understanding how companies track emissions
Focus on understanding, then application.
Scope 1, 2, and 3 may sound technical.
But at the core, they’re about one thing:
Understanding where emissions come from, so we can reduce them.
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