Website Carbon Calculators are good for awareness about energy consumption of the IT sector, but they currently work based on very rough estimations. Therefore more transparency is needed as well as better tools for developers to create better, more energy efficient code – this is the current conclusion by Roberta Haseleu.

She gave a 15 minute talk at Chaos Communication Camp 2023 about her tests with the existing carbon calculator tools, I recommend it very much:

• https://matthias-andrasch.eu/2023/fooled-by-the-website-carbon-calculator-roberta-haseleu/

A place for following these discussions is the „#greener-webdev“ channel at Climate Action Tech Slack:

• climateaction.tech

Feel free to join, there are local channels for different world regions as well.