Estimating website emissions in the italian context – Sitigreen & CO2.js
In this case study, we explore how the Sitigreen website carbon calculator uses CO2.js to perform website carbon calculations that are specific to Italian users.
Fershad Irani
Carbon Emissions in Browser DevTools – Firefox Profiler and CO2.js
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.
CO2.js Case Study – Step CI
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.
CO2.js Case Study – Ecograder by Mightybytes
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.
CO2.js Case Study – WebPageTest
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.
Release guide: CO2.js v0.13
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.
Curious about driving the transition to a fossil-free internet? Here’s how CO2.js can help.
This article will explain the concepts behind CO2.js, it’s uses, and when other tools might be better options to consider.
A beginners guide to performing a website carbon audit – Part 1: Hosting
This post is the first in a series exploring how to start auditing the sustainability of a website. This post focuses on addressing the carbon emissions of website hosting.
Release guide: CO2.js v0.12
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 – Using and contributing to CO2.js
Sitespeed.io is an open-source website performance monitoring solution that also has a sustainability plugin powered by CO2.js.
Release guide: CO2.js v0.11
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.