> On an ecological level first of all, whilst digital solutions may be less energy-consuming than paper, they’re by no means energy-free. A short email sent and received on a phone produces 0.2 grams of carbon dioxide equivalent (CO2e), while an email with an image or attachment – for instance, a PDF ticket - produces 50 grams of CO2e, according to the great authority on carbon footprint measurement, Professor Mike Berners-Lee.<p>Ok. I need to see the math on this, or else my phone and computer is capable of some sort of physics defying magic. I can send an email with a large attachment on my modest "homelab" a few raspberry pis in, lets be absurdly generous, 10 seconds.<p>So 10 seconds of raspberry pi time, maxed out, 270 watt seconds (probably close to 1/10th that since it isn't maxed out). Reading it on my phone, takes a similar amount of power, realistically less. My phone is perfectly happy to charge off of 2.5 watts so lets say that receiving it takes another 10 seconds. So, being absurdly generous I'm using 295 watt-seconds. If I convert that to kWh I get 0.00008194444444 KWh.<p>I get all my electricity from hydro, but lets say that I was down the road from a coal plant. A coal plant emits 800g CO2 per KWh. That means that the devices that I used to send and receive a large email consumed a whopping 0.06555555556 grams of CO2.<p>I understand that there will be server farms handling my email in the real world, but those server farms are handling billions of other emails, and live and die on power costs, so I don't really think that my email is sucking down power there?<p>Where in the world is it 50g CO2 to send an email (or 62Wh if we convert it back)? What in the world makes you think that a paper ticket, which is literally several grams of carbon and oxygen, has less of an impact?<p>I'm willing to hear that there are people impacted by technology adoption. I'm more than willing to learn about carbon impact. But please don't put together an argument that anyone with any knowledge about the domain can see right through in a blink.