You may have come across this news item a couple of months ago but it is worth taking another look. Although, the study was conducted by a major spam-ware corporation, it is clear that junk e-mails have a huge carbon footprint.

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Anything powered by electricity emits greenhouse gases. Recently research was conducted in the US to find out the amount of energy needed to transmit, process and filter spam globally. The results were startling. According to the ‘Carbon Footprint of Spam’ report the average greenhouse gas emission of a single spam message is 0.3 grams of CO2. Is this a lot? Well, if you multiply this by the number of spam sent annually it translates into a huge figure.

It is estimated that there are 62 trillion junk e-mails sent each year. In terms of energy this equals to the energy needed to drive a car around the planet 1.6 million times. If looking at the electricity needed to power these spam it equals to 33 billion kWh. This amount of electricity could power 2.4 million homes for a year! Spam-related emissions for all e-mail users around the world in 2008 totalled 17 million tons of CO2 or about the same as the emissions produced by 3.1 million passenger cars. That’s 0.2% of the total global emissions.

The report found that about 85 to 91% of all e-mails globally is spam. Nearly 80% of the spam-related GHG emissions came from the energy used by the PC users viewing, deleting and searching for legitimate e-mails amongst the junk e-mails. But spam filtering itself accounts for about 16% of spam-related energy use. To view and trash a piece of spam takes about 3 seconds.

If every inbox were protected by spam filters, organisations and individuals could reduce today’s spam energy by 75% or by 25 billion kWh per year. This would save the same amount of greenhouse emissions as produced by 2.3 million cars. In late 2008 a major source of online spam was taken off line and global spam volumes dropped by 70%. However, there are always new ones to take its place.

This 8 minute video shows how Linfox is going about reducing its carbon emissions. What stands out for me in this video is the broad commitment across the organisation to cutting greenhouse gas emissions. Use it to help inspire a similar commitment in your organisation.

Reflecting on my interviews with various leaders in the energy efficiency space there are five things you must have to successfully reduce energy use and carbon emissions.

First you need leadership commitment.

Second you need a measurement and monitoring system. Whether you are a school (listen to Hannah Lewis, Westernport Secondary College, which has halved its energy use in the last four years) or a major corporation such as Wesfarmers, you must be able to track your progress.

Third you need more than one person active and driving the program. Witness Linfox, where a few programmers voluntarily took on the extra project of building a carbon tracking tool.

Fourth you need a well informed plan as to what you need to do. An energy audit by experienced energy efficiency engineers will provide this.

Fifth, you need investment. Money is needed to get the savings. The money could be spent on people (eg the driver training undertaken by LinfoX) or technology (eg lighting upgrades at Darebin City Council and Newcastle City Council, or the new paint plant at Toyota). 

Do this and with time you’ll have a self-funding system that will continue to reduce your energy use and carbon footprint.

Linfox is well known for the “You are passing another Fox” sign on the back of its vehicles. But the company has also cut its greenhouse gas emissions by 9% in the last eighteen months, and is on track to cut its emissions by 15% by December 2010.

I had the privilege of interviewing David McInnes, Group Manager Environment and Climate Change yesterday and being inspired about Linfox’s approach to the climate change challenge. It was refreshing not to hear the Carbon Pollution Reduction Scheme mentioned once in the interview. Linfox is reducing its carbon emissions because it wants to, not because its being forced to, and is quietly getting on with it.

So how does a organisation with 15,000 staff, whose carbon emissions mostly come from diesel consumed in trucks, reduce its per km emission by 9% in eighteen months? You can find the interview on our “Good News Interviews” page.

For me a couple of the standouts from the interview were:

• Their staff engagement program. Almost all of their savings have come about by making better use of what they already have, rather than investing in new technology. This has been achieved by getting their staff involved in changing the way things are done and in how trucks and buildings are operated, and making hundreds of small changes.
• Their carbon accounting system – developed in-house. Linfox programmers set up their SAP system such that now monthly carbon reports can be generated, down to the level of individual trucks if necessary. A consistent theme of all organisations cutting their carbon footprints is their focus on accurately and frequently tracking their emissions
• David’s recommendation to any organisation wishing to cut their carbon footprint to undertake an energy audit, which provides the business case for action. Thanks for the plug for my profession David!

After the interview we discussed Linfox’s Greenfox program, and I wish I had left the voice recorder on. This is a fantastic program. Staff can become a Greenfox by passing five training modules. Everyone who completes the training gets a framed certificate, and drivers who complete the training get a Greenfox badge on the shoulder of their uniform. David mentioned that Greenfox’s often become ambassadors, with truck drivers going to their kid’s schools and talking about climate change.

Also not covered in the interview was the great help David got from Linfox’s IT department in modifying SAP. Normally there is a long queue in the organisation for projects requiring SAP changes. The carbon accounting adjustments though were undertaken by the SAP programmers on top of their normal requirements, such was their commitmen to the company reducing its carbon footprint.

Finally David also spoke off the record about the need to focus less on the science and more on the community and the emotional response that when sparked can result in great change.

As one of Australia’s larger businesses Linfox is taking a leadership role by getting on with reducing its corporate carbon footprint. David McInnes is providing inspirational leadership. Take half an hour to listen to David McInnes and I guarantee you’ll come away motivated and hopeful about what is possible if we focus on cutting carbon emission.

General Electric is developing “smart” appliances that can integrate with “smart meters” and thus potentially schedule loads in a way that reduces maximum demand.

With time of use pricing in place, the GE system will use pricing information to schedule loads real time. So for example if a washing machine was running it might switch it off if the price of electricity increased, then switch it back on again when the price dropped.

GE have a dedicated website looking at the smart grid as part of its “eco-imagination” drive. If you have the patience for the flash animation to download its a superficial visual view of the smart grid and smart meters, but with little detail of the technology.

Otherwise Click here for a profile on the technology by Martin LeMonica at CNET