Scope Emissions Explained
A straightforward guide to Scope 1, 2, and 3 emissions - what they cover, why they matter, and how understanding them helps your business take meaningful climate action.
If you’ve spent any time around sustainability conversations, you’ll have heard the terms Scope 1, 2, and 3. They sound technical, but the idea behind them is straightforward: they’re a way of sorting your greenhouse gas (GHG) emissions into categories so you can actually see where they’re coming from - and do something about them.
The categories are defined by the Greenhouse Gas Protocol, and they cover everything from the fuel in your company vehicles to the emissions buried deep in your supply chain. Here’s how they break down.
Scope 1: The emissions you create directly.
Scope 1 covers direct emissions from things your business owns or controls. This is the most tangible starting point - you can see it, measure it, and start reducing it relatively quickly.
Think gas boilers and furnaces in your buildings, company vehicles on the road, emissions from manufacturing processes, or even agricultural activities if that’s your sector. Transitioning to renewable energy, improving operational efficiency, and exploring digital transformation can all make a real dent here.
Scope 2: The energy you buy.
Scope 2 is about indirect emissions from purchased energy - the electricity powering your offices, the heating and cooling keeping your buildings comfortable, and similar utilities. The emissions happen at the power station, not at your premises, but they count as yours because you’re the one consuming the energy.
This also extends to remote working facilities if your company covers those energy costs. Switching to a renewable energy supplier or installing on-site generation are two of the most effective ways to tackle Scope 2.
Scope 3: Everything else in your value chain.
Scope 3 is the big one - and the trickiest. It covers all the other indirect emissions across your entire value chain: the raw materials in your products, staff commuting and business travel, waste disposal, and even how your customers use what you sell.
For most businesses, Scope 3 is the largest share of total emissions, but it’s also the hardest to measure and influence because it involves activities outside your direct control. That said, understanding your Scope 3 is essential. You can’t manage what you can’t see, and increasingly, stakeholders want to see the full picture.
Why this matters for your business.
Understanding and reporting on all three scopes is the foundation for any meaningful sustainability strategy. Once you know where your emissions come from, you can set targeted priorities - whether that’s improving energy efficiency, shifting to renewable sources, or working with suppliers to reduce their footprint too.
If understanding your emissions is the first step, working out what to do about them is the next. We help businesses build practical sustainability roadmaps grounded in real data. Learn more about our Sustainability & Circular Economy work.
You can download a designed .PDF of this article here.
You can also access the Sustainability Decoded GPT here, which will support you with initial advice and inspiration to initiate or accelerate sustainability within your business.
Further Reading
- What are Sustainability Frameworks?
- Carbon Accounting