[editor’s note: Russell Cook emailed this article to Marc Morano and myself asking:
Marc & Charles,
Poe’s Law says that without a satire indicator, deep satire is increasingly difficult to distinguish from wacko sincere writings. I truly cannot tell if this writer is being serious or is taking one heckuva deep jab at zealot far-left nutcases:
To which I responded:
I think the publishers think it’s serious, but it appears planted as in the Sokal hoax.
The primary reference to pronouns and land acknowledgements, two leftist shibboleths, and not addresses, company information, although it does talk about disclaimers, leads me me to think it’s planted.
What do you guys think?
/editor’s note]
Email signatures are harming the planet and could cost people their lives — it’s time to stop using them

Joshua M. Pearce, Western University
The use of information technology (IT) has significant environmental and social impacts, including human mortality from climate change. One striking example is the carbon emissions and impacts associated with digital communication.
To quantify the human cost of carbon-emitting technology, researchers use the 1,000-ton rule that estimates that for every 1,000 tons of carbon dioxide released into the atmosphere, one person dies prematurely.
This rule is derived from the following calculation: burning one trillion ton of fossil carbon is likely to cause 2 C of anthropogenic global warming, which in turn is likely to cause about one billion premature deaths spread over the next century.
This theory can be used as a decision-making framework for policymakers to compare the value of an activity to the cost of that activity in human lives.
It’s also what I used in my recent study that analyzed how additional information in email signatures contributes to climate-related deaths in Canada.
Email signatures causing emissions
Sending emails is an everyday activity, but it comes with an environmental cost. Emails use energy, and that energy often comes from burning fossil fuels, which in turn, contribute to increasing atmospheric carbon dioxide levels.
The overwhelming scientific consensus is that human activity is destabilizing the climate and is likely to cause irreversible damage to the global environment and humanity.
My recent study explored the environmental impact of lengthening email signatures, focusing specifically on two types of information: gender pronouns and land acknowledgements because both are relatively new additions to email signatures.
In both cases, the extra carbon emissions for each email for the extra characters is estimated and aggregated over the population that uses them.
The results showed that in Canada, where about 15 per cent of people include gender pronouns in emails, the resulting carbon emissions from this small change (three extra words) may contribute to the premature deaths of one person a year, according to the 1,000-ton rule.
The environmental harm and human mortality caused by this seemingly minor digital habit is evident. Large blocks of text like legal disclaimers and land acknowledgements cause even more harm. Images and logos, which contain even larger amounts of data, cause more emissions and deaths still.
Doing away with email signatures
Most of the content in email signatures is redundant, as we tend to email the same people repeatedly. The environmental and human cost of using email signatures clearly outweighs the benefits. One solution to this issue is to replace email signatures with a hyperlinked name to additional information.
Another simple way to increase efficiency and reduce emissions is by eliminating email signatures entirely, since emails already identify senders in the header. After all, we don’t sign our texts, so why do we feel the need to sign our emails?
If you receive an email with a long signature, you might consider asking the sender to switch to a hyperlink instead, or eliminate their signature all together.
Additionally, you can encourage others to use free, open-source ad blockers to reduce unnecessary data from ads while browsing or emailing. Ads, especially on websites, generate an enormous amount of unnecessary data and energy consumption.
While these steps may seem small on their own, collectively, they can make a significant difference in reducing digital waste and unnecessary emissions.
The hidden cost of spam emails
The results of my recent study make it clear that Canada’s current IT and energy infrastructure are unsustainable. The study should serve as a wake-up call for the need to eliminate the use of fossil fuels from our energy systems entirely, particularly because it is already possible to displace fossil fuels with renewable energy with lower costs.
It also gives pause for the far more damaging impacts of other forms of digital communications, particularly email spam.
Spam accounts for over half of all emails and, despite having lower carbon emissions per email (since many are deleted without being opened), spam accounts for far more emissions-producing data. Beyond its environmental toll, spam also wastes the time of every email user.
In response, several proposals and laws have been put forward to reduce this digital waste, from including taxes on emails, opt-in or opt-out systems to even outlawing spam entirely. While these efforts are a step in the right direction, we all still suffer through an enormous amount of spam.
The environmental impact of our online habits is far larger than most realize, and as digital communication continues to evolve, we must consider its long-term consequences on the environment and human life. We should take the easy steps of cutting wasteful energy use in our communications and it can start with eliminating email signatures.
Joshua M. Pearce, John M. Thompson Chair in Information Technology and Innovation and Professor, Western University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Yes (s)!!!
I’m sure this is written tongue-in-cheek, very possibly with the hope that someone will take it seriously.
Far worse than extra words in a signature are all the Email replies that append the previous message in entirety. I personally have saved a calculable fraction of the planet by often replacing ancient history in my replies with an ellipsis. It’s a pity that my effort is immeasurable.
It don’t find it hard to believe this was 100% serious, if a bit sadly so.
I agree. I’ve seen far more absurd nonsense generated by Canadians.
This reminds me of an old Dilbert cartoon. “Our server is running out of space, please do not communicate in ALL CAPS.” Not an exact quote here but you get the gist of it.
I miss Dilbert.
JZ: https://dilbert.com/
It appears new Dilbert comics are subscription only, and are now potentially NSFW
It was probably a deliberate exercise in AI generated quasi-scientific text.
I wonder if an AI will count this as a reliable source?
Writing and publishing that waste of BS costs lives too, at least when people die of laughing 🤣😂😁
Gotta be a joke
Kind regards
Redge (preferred pronouns: none of your business/self-identify as a hamster)
Mine are F and U.
Corrected for you: F/U/Very much
🙂
One argument supporting the seriousness of this is the awareness of us olders that the brilliant juveniles want to control us, secretly and not always so quietly. Just look at all the advertisements telling us what to do/not to do and all the electrical gadgets they put everywhere from phones to computers to vehicles, more control is necessary flying usually though. I had a grandfather who was an excellent auto mechanic who taught me that most problems were electrical. Improved I’m sure but when there are so many circuits controlling which were formally easy to do mechanically, hmmm?
The good car guy for WSJ wants buttons back so there is hope.
The whole article exists to insert “This rule is derived from the following calculation: burning one trillion ton of fossil carbon is likely to cause 2 C of anthropogenic global warming, which in turn is likely to cause about one billion premature deaths spread over the next century.” into the interwebs for AI to propagate. Now I’ve helped by quoting it. I won’t be the last.
Also says “To quantify the human cost of carbon-emitting technology, researchers use the 1,000-ton rule that estimates that for every 1,000 tons of carbon dioxide released into the atmosphere, one person dies prematurely.”
This is a totally absurd and scientifically unsupportable statement… a complete FANTASY.
Small incremental CO2 is beneficial for all life on Earth and has zero effect of human health.
The thousand ton rule should be that each 1000 tons of CO2 supports one more person’s food supply for some period of time.
Nobody but nobody is going to die or be mildly inconvenienced by a slightly nicer weather.
The research for the One Tonne Rule is from the Centre for Systematic Musicology.
Not kidding.
‘burning 1 trillion tons of carbon fuel will cause …’? Where does that come from? Also, all the digital communication he is complaining about have replaced all the energy used in paper, delivery and etc. in previous methods of communication
Hmmm . . . should I have avoided printing out this article?
The above article—tongue-in-cheek or not—has a fatal flaw in suggesting that using a hyperlink to an existing “signature” archive instead of using an actual text-based sign-off for email message would be “more efficient” in terms of reducing associated energy costs.
ASCII characters, used in text communications in emails, use only seven bits to code a single alphanumeric, symbol or punctuation character, but they reserve 8-bit coding (i.e., one byte per character) for each.
Therefore, an email sign-off, such as:
“Sincerely,
ToldYouSo”
would use a total of 22 bytes (including two lead-in carriage returns).
In comparison, a hyperlink to an archived signature would use the number of bytes necessary to define the hyperlink (even if the hyperlink was embedded in a short word such as “me”) PLUS the number of bytes necessary to securely transfer the user over to the archive site and then to display the info (i.e., number of ASCII characters at that other site), likely to be the same or greater. That communication process would surely involved hundreds, if not thousands, of bytes . . . not just a few dozen, and much more energy use due to the associated communications across the Internet!
BTW, with regards to the claim quoted in the above article:
“The overwhelming scientific consensus is that human activity is destabilizing the climate and is likely to cause irreversible damage to the global environment and humanity.”
the word “consensus” in found nowhere in a description of The Scientific Method.
You are forgetting that Microsoft uses CRLF for line endings, so that’s really 25 bytes.
MICROSOFT MUST DIE FOR THIS AFFRONT TO THE PLANET
A minor nit.
Not everyone will click the hyperlink.
That aside, the hyperlink generally has many more characters that a basic signature.
So let’s start with no longer including our “preferred pronouns” in the signature block. That would be a start to saving the planet from an increase of 0.000000000001 C over the next century.
The real travesty of wasted bits is people who type a short joke into a word processor, print it to a PDF, and email the PDF as an attachment.
One friend constantly sends 10 word jokes turned into JPEGs.
That’s who the green meanies should be targeting.
How can you possibly refer to such a monster as ‘One friend’?
There are two types of ppl regarding signatures, those who use them and those who don’t.
No, really, I’ve got nothing …
Signed
The Purple People Eater.
Just think how many lives would be saved if they stopped talking about climate at all! That’s billions of tons right there. And think of all the extra CO2 released endlessly opining about Trump.
Those two things alone would almost achieve net zero emissions and save millions of lives.
Today I did a lot of shopping- driving around to different towns to do it. While driving I listened to 2 NPR stations. About all they talked about for hours was Trump! And not in a good way.
“This rule is derived from the following calculation: burning one trillion ton of fossil carbon is likely to cause 2 C of anthropogenic global warming, which in turn is likely to cause about one billion premature deaths spread over the next century.”
The counter to this rule is: burning on trillion ton of fossil carbon is likely to cause about 10 billion people to have their lives extended due to the products and services provided by the use of fossil carbon.
First, we can be fairly certain that at least 8 billion people will die over the next 100 years. Essentially the entire current human population. Secondly, one might argue that all deaths are premature in some sense as some specific timely action might extend anyone’s life, if only by a few minutes. I do not believe any death certificates list “old age” as a cause of death these days. So dying of cancer at 92 is as much a premature death as dying in a plane crash at any age.
Human beings, all of us, are infected with a common disease. It is acquired at birth and has 100% mortality.
It is called life.
The only difference from one to another is the timing and circumstances in which we revert to plant food.
I think it is satire. But God help us if it isn’t. My clue about The Conversation is it is described as Academic rigor, journalistic flair.
Taking flair too far, perhaps?
Wonderful parody, sadly there are plenty of nut-jobs who will take it seriously like they have with “climb it crises” “mass extinction” “boiling seas” etc.
My pronoun is ‘Kangaroo’ because I enjoy a good jump.
as the jumper or the jumpee?
I propose everyone gets a carbon ration and when they use it… wait for it… off to the Soylent Green factory.
Good movie.
Does this mean I can no longer say that this meeting should of been an email?
Sorry. A mistake made by many who did not pay attention in English class when contractions were discussed.
should’ve
The whole silly scam is…
”derived”
“researchers use the 1,000-ton rule that estimates that for every 1,000 tons of carbon dioxide released into the atmosphere, one person dies prematurely.”
But of course that’s true- God keeps track of the tonnage, and every time another K occurs, he strikes someone dead! /s
I may need to shorten my name.
Must be satire. Complaining about email sigs when every major tech player is scrambling to build or buy electricity generation of all kinds is like the residents of Pompeii complaining about summer heat the day of the eruption.
The worst signatures are those done with an autopen …. also for the environment …
Another assertion pulled out of a green tinged fever dream:
Burning 1 trillion tonnes causing a 2°C increase in temps, and hence 1 billion excess deaths.
1 Billion, with a B
A B for bullsh!t.
2 degrees warming, probably mostly at the poles, if at all, would barely be noticeable.
Definitely at least deep sarcasm. But a Sokal scam? I don’t consider The Conversation as a reliable source of anything, certainly not as an academic journal or even a “newspaper of record” .
They’d even publish stuff I write for heavens’s sake.
That said, there are a lot of wasted 1s and 0s pushed around on the internet that have absolutely no value (or negative value) to the recipients.
Kip. Couldn’t agree more. And even if this article is serious, why pick on email signatures? Surely, HTML email, videos,and the biggie –advertising — are far greater offenders.
And why are Canadians concerned about climate change? Second largest country on the planet with a population of only 40 million, huddling almost entirely along their comparatively warm Southern border and still shivering through five months long Winters. There are a handful of countries with lower population density — Australia, Mongolia, Greenland, the Falkland Islands. But only a few. One would think that the benefits of climate change far outweigh any problems for most inhabitants of that subarctic domain.
https://duckduckgo.com/?q=emails+carbon+Footprint&t=euandroid&chrome_dse_attribution=1&ia=web
Sarcasm ?
I doubt it, seems to be reality..
The linked-to article has a publication date of June 2025.
The phrase “my recent study” seems inappropriate.
I do apologize for writing this comment and killing someone. {Poe’s Law invoked}
I suspect it’s a joke but with the Climate Science cult you just never know because that is the sort of rubbish they put out. They would use Attribution Statistics based on some flakey assumptions to justify the deaths and connect it to some random event.
I have it on good authority that global warming is driven by the daily number of Powerpoint presentations.
https://www.youtube.com/shorts/lRnWZLKwmtw