In 2023, the Mozilla introduced carbon emissions estimates into its developer tooling. This case study explores how the Mozilla team and Green Web Foundation members made this possible using CO2.js.
Step CI is a testing and monitoring tool for APIs. In this case study, we look at how they introduced carbon emissions estimates using CO2.js.
Ecograder is one of the pioneering tools when it comes to estimating website carbon emissions. In this case study we look at the Ecograder story, and how CO2.js helped with its most recent update.
WebPageTest is one of the most trusted web performance testing tools. This case study covers how CO2.js enables the Carbon Control feature in WebPageTest.
CO2.js v0.13.0 brings the latest average grid intensity data from Ember into the library, as well as expands the number of countries for which average grid intensity data is available.
CO2.js v0.12.0 introduces the ability to customise the figures used in carbon emissions calculations when using the Sustainable Web Design model, paving the way for more case specific carbon emissions estimates.
Sitespeed.io is an open-source website performance monitoring solution that also has a sustainability plugin powered by CO2.js.
The v0.11.0 release of CO2.js introduces a change to the default carbon estimation model, as well as including global average and marginal intensity data for the first time.
The v0.10.0 release of CO2.js saw several large developer experience and usability improvements added to the library.