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Our 3:1 methodology


Our 2020 ambition is to have helped our customers’ cut their carbon emissions by at least three times our own end-to-end carbon impact.

Working with Carbon Trust, so far we’ve found 31 ways we can measure the drop in our customers’ carbon emissions, from audio conferencing to copper cable recycling. The full list is at the bottom of the page.

Take a look in the Delivering our Purpose report to see the progress we made last year.

We’re sharing our methodology with you so you can be confident about our data. We’d also like you to suggest how to improve it or adapt it for your own organisation.

Working on our methodology

We’ve calculated our end-to-end carbon footprint by measuring the emissions we make from energy and fuel when we’re making products, as well as emissions created by our suppliers and customers. Here’s how we did it:

Then we worked out which of our products and services can help cut our customers’ carbon emissions, and by how much.

Since 2012/13 we have worked with Carbon Trust to derive and support our methods. 

Their report describes how we work out how much carbon our customers avoid using, just by having our products and services. Feel free to look at it to check our approach, improve on it and use it for your own organisation.   

Thirty one ways that we reduce carbon emissions

Audio conferencing
Broadband enabled dematerialisation
Broadband enabled e-commerce
Broadband enabled SME use of Cloud Computing
Broadband enabled Telecommuting
BT Vision
Cloud Contact
Data Centre Services
Ethernet enabled e-commerce
Field Force Automation
Inbound Calling
Managed Mobility
One Cloud
Recycling of copper cables
Super-fast broadband enabled dematerialisation
Video conferencing - Telepresence
IP Comms
BT Mobility
BT Apps
M2M - Taxis
M2M - Traffic Management
M2M - Street light management
M2M - Smart Meters (Domestic)
M2M - Smart Meters (Business)
M2M - Vehicle Telematics
M2M - Usage Based Insurance
Smartphone Use
Cloud Connect