Our carbon footprint is measured and independently verified annually by Auditel, in accordance with ISO 4064-3 standards.
Key achievements so far include:
We have now measured our entire operational carbon footprint, which is 2749.81 tCO2e broken down as follows:
Scope 1 emissions – 111.21 tCO2e
These are our direct emissions: gas in our premises, petrol and diesel fuel in our vehicle fleet
Scope 2 emissions – 13.29 tCO2e
Indirect emissions associated with purchased electricity use in premises
Scope 3 emissions – 2625.31 tCO2e
Other indirect emissions associated with Warmworks’ activities. Categories are:
Recognising that our sub-contractors account for the majority of our indirect emissions (82%), we are supporting them through an industry-leading supply chain development programme.
For those emissions that we have direct control over (Scope 1) but also Scope 2 we have made significant reductions in our overall carbon intensity expressed as tonnes of carbon per £1m turnover with an 80% reduction since FY 2019/20. This is summarised in the graph below.

Our commitments and carbon reduction plans are summarised below.
We will measure the emissions associated with all of our suppliers, have in place a sustainable procurement policy and embed sustainability indicators in the procurement and subsequent performance management of our supply chain. Through our industry-leading supply chain development programme, we will support our sub-contractors to reduce their emissions by: