Small Email Habits That Cut Your Office's Carbon Footprint

Most of us think of carbon emissions in terms of factories, vehicles and power stations. Few people think of their inbox. Yet every email is sent, stored and read using electricity, and the data centres and networks behind it all have a carbon footprint. One email makes almost no difference. Billions of them, every day, add up.

This article looks at a well-known estimate of the carbon cost of "thank you" emails, what it does and does not tell us, and the simple habits that help an office cut its digital footprint.

The "thank you" email study

In November 2019, research commissioned by the UK energy supplier OVO Energy put a number on unnecessary emails. Its headline figures were:

• each short email produces roughly 1 gram of carbon dioxide
• more than 64 million unnecessary emails are sent in the UK every day
• if every adult in the UK sent one fewer "thank you" email a day, the country would save more than 16,433 tonnes of carbon a year, which the study compared to 81,152 flights from London to Madrid

Press reports of the research also said that 71% of Britons would not mind receiving fewer "thank you" emails if it helped the environment.

Keeping the numbers in perspective

It is worth being honest about what this study shows. Professor Mike Berners-Lee of Lancaster University, who worked with the researchers, acknowledged that the analysis was a rough estimate, and critics have pointed out that the potential saving is very small compared with a country's total emissions.

So cutting "thank you" emails will not solve climate change. But the study makes a useful point: small, everyday habits, repeated across millions of people, have a real footprint. Thinking about them is a good way to start thinking about the bigger sources of emissions too.

Simple habits for a lower digital footprint

Think before you thank. A quick "thanks" by email is polite, but often not needed. Say it in person, at the next meeting, or in a team chat that does not create another email thread.

Use "reply all" sparingly. Copy in only the people who need to read the message.

Send links, not attachments. Sharing a link to a document stored in one place avoids sending many copies of the same large file.

Unsubscribe from newsletters you never read, and ask to be removed from distribution lists that are not relevant to you.

Tidy up your storage. Old emails, duplicate files and unused cloud folders all take up space in data centres.

Combine messages. One clear email with everything in it is better than several short follow-ups.

Building a culture of appreciation without the emails

Saying thank you matters. It builds trust and makes people feel valued. The aim is not to stop appreciating colleagues, but to do it in ways that mean more and cost less:

• thank people in person, or at team meetings
• give a shout-out in your team's regular update
• recognise good work, including good safety behaviour, in front of the team
• save written thanks for when it adds something, such as recognising effort that others should know about

Beyond the inbox

Digital habits are a small part of an organisation's environmental impact. For most workplaces, the larger sources are energy use in buildings and processes, transport, waste and water. Good environmental management looks at all of them:

• measure first, so you know where your emissions and waste actually come from
• set targets that focus on the biggest sources
• involve employees, who often have the best ideas for saving energy and materials
• report progress, so people can see the effect of their efforts

Leading by example

Environmental responsibility sits naturally alongside health and safety. Both are about looking after people, now and in the future. Organisations that make small changes visible, and explain why they matter, find it easier to win support for bigger ones.

We would welcome your ideas on reducing the footprint of everyday office life. Write to us at info@eduforce.in.

How Eduforce can help

Our environmental management services cover air, water and soil monitoring, environmental impact assessment and related support, and our carbon credit programme support sits alongside them. To discuss your organisation's environmental performance, write to info@eduforce.in or message us on WhatsApp at 8779291591.