Ozone Health Ltd | ESL
Prepared for
Carbon footprint report

Ozone Health Ltd

Our greenhouse gas emissions, measured to the GHG Protocol and explained in plain English.

Reporting period · Mar 2025 – Feb 2026GHG Protocol Corporate StandardAll figures in tCO₂e
Our sustainability statement
We are committed to achieving Net Zero emissions by 2040 through a comprehensive program of carbon reduction measures, including energy efficiency improvements, renewable energy adoption, and sustainable transport initiatives.
This plan demonstrates our compliance with PPN 006 (previously PPN 06/21) requirements and our ongoing commitment to environmental responsibility and climate action.

Tip: words with a dotted underline have a plain-language definition — hover or tap them to read it.

The headline

Our total footprint this year

Total emissions · Mar 2025 – Feb 2026
12.6tCO₂e

In plain terms: everything we did in 2025 added about 13 tonnes of greenhouse gases to the atmosphere, measured in a single comparable unit — tCO₂e.

Compared with last year
—

Our footprint was higher than last year — up from 0 to 12.6 tCO₂e. This is a factual change in the data, shown so you can track the trend over time. It isn't a pass or fail.

2024 → 2025
20240.0
202512.6
Putting it in perspective

What 12.6 tonnes looks like

Tonnes of gas are hard to picture, so here are two everyday comparisons for the same total. They're illustrative — a way to feel the scale, not extra measurements.

Miles driven
48,650miles

About the same as driving an average petrol car 48,650 miles — roughly 2 times around the Earth.

Based on the average petrol car. Scales automatically with the total.

Trees for a year
506trees

It would take roughly 506 mature trees a full year to absorb this much CO₂e — about the size of a small woodland.

Based on annual tree sequestration. Scales automatically with the total.

The breakdown

Where our emissions come from

Emissions are grouped into three standard categories called . Here's the whole picture in one place, with a plain-language name for each.

12.6tCO₂e
Emissions from the energy we buy1.8 · 14.3%
Scope 2 · purchased electricity
What this means

The electricity we buy from the grid is generated somewhere — often by burning fuel. Those emissions happen off your site but are counted as yours because you chose to use the power.

Emissions across our value chain10.8 · 85.7%
Scope 3 · value chain
What this means

These are emissions from everything around our direct operations — suppliers, purchased goods and services, business travel and more. They happen outside your walls but are a result of how the business runs. This is the single largest part of your footprint at 85.7% of the total.

See the categories
Employee Commuting Cat 79.8 · 90.3%
Upstream Transport & Distribution Cat 40.8 · 7.9%
Business Travel Cat 60.2 · 1.4%
Waste Cat 50.0 · 0.4%
Emissions we create directly0 · 0%
Scope 1 · direct · a measured zero

This is a genuine zero, not missing data. We don't burn gas on site or run our own vehicles, so we have no direct emissions to report this year. We checked and confirmed it.

What's driving it

The biggest contributors

Ranked from largest to smallest, so it's clear where our footprint mostly comes from — and where the biggest opportunities to reduce it sit.

Value chain Scope 310.8 tCO₂e · 85.7%
Electricity we buy Scope 21.8 tCO₂e · 14.3%
Direct fuel & vehicles Scope 10 tCO₂e · none this year
A fair comparison

Emissions relative to size

Our total on its own can rise simply because we grew. An divides emissions by a measure of size, so we can compare fairly year to year and against peers.

Per employee
1.6tCO₂e / person

For every person who works here, our activities produced about 1.6 tonnes of CO₂e this year.

Per £1m turnover
Not disclosed

We've chosen not to publish our turnover, so we can't show emissions per £1m of revenue. That's a reporting choice — not missing measurement, and it doesn't affect the accuracy of the totals above.

Where to go from here

Our next steps

Measuring our footprint is the first step. These are the standard actions that follow a carbon report.

1
Improve data accuracy next year

Replace estimated figures with primary activity data where we can — especially across our value chain — so future footprints are even more precise and comparable.

2
Review our emission hotspots

Focus attention where your footprint concentrates. For this year, value chain — led by employee commuting is the clear priority — target the largest contributors first for the biggest reduction.

3
Implement our reduction actions

Put the measures from our sustainability report into practice, then track their effect against this year’s figures to show progress over time.

How we know

How this report was measured

So these figures can be trusted, here's exactly what's included and how it was calculated. Every number traces back to the .

Reporting boundary

All operations under our control, for the period Mar 2025 – Feb 2026.

Standard used

GHG Protocol Corporate Standard. Every figure is expressed in tCO₂e for consistency.

Data quality

We prioritise measured, verifiable data throughout. Where this isn't yet available, we apply the best available methods to keep figures as accurate as possible.

Plain-English glossary

Every term, defined

The same definitions that appear as pop-ups throughout the report, gathered in one place for reference.

tCO₂e

Tonnes of carbon dioxide equivalent — one unit that combines all greenhouse gases, weighted by their warming effect, so everything can be added up and compared.

GHG Protocol

The most widely used international standard for measuring and reporting greenhouse gas emissions. It sets the rules this report follows.

Scope 1 · direct

Emissions a company creates directly — for example burning gas on site or fuel in its own vehicles.

Scope 2 · energy bought

Emissions produced when generating the electricity, heat or steam a company buys and uses.

Scope 3 · value chain

All other emissions across a company’s value chain — from suppliers and purchased goods to business travel and product use.

Intensity ratio

Emissions divided by a measure of business size (like employees or revenue), so a company can be compared fairly as it grows or shrinks.

Location vs market-based

Two ways to count electricity emissions. Location-based uses the average local grid; market-based reflects the specific electricity actually bought, including green tariffs.

Net zero vs carbon neutral

Carbon neutral usually means emissions have been balanced by offsets. Net zero means cutting emissions as far as possible first, then offsetting only a small remainder — a higher, science-aligned bar.

About ESL

ESL helps organisations measure, understand and reduce their carbon footprint, turning emissions data into clear, GHG Protocol-aligned reporting and a practical path to net zero. This report was prepared in partnership with ESL.

Learn more about us
Measure

Full-scope footprints built to the GHG Protocol.

Report

Clear, audit-ready reporting anyone can understand.

Reduce

A practical roadmap to cut emissions year on year.

Built to measure.
Prepared by ESL · GHG Protocol
Confidential · Reporting period Mar 2025 – Feb 2026