Hey, I'm Fershad

A look back at a very full 2023.

This post was originally published as part of the 2023 Web Performance Calendar.

It's almost COP time, which means another website review! This year I'm focusing on the controversial Low Carbon Version of the COP28 website, and looking at how it has been implemented.

How much power does loading a JPEG, WebP, and AVIF image consumer on a user's device? In this post, I've used the Firefox Profiler to run some unscientific tests in the hopes of finding out.

A couple of weeks ago I had the pleasure of jumping on the Environment Variables: This Week in Green Software podcast with Chris Adams.

Sitespeed.io is an open-source website performance monitoring solution that also has a sustainability plugin powered by CO2.js.

In early May, 2023, the WebPageTest (WPT) team shipped a new feature to the tool. They called it Carbon Control, and boy oh boy was I excited to see it finally land.

This post captures my thoughts on the use of data transfer in website carbon emissions calculcations, and what the future holds.

A recent post by Adrian Cockcroft raised some sensible counter arguments for why chasing green energy usage for cloud compute might not always be the most climate friendly solution.

A conversation from the ClimateAction.Tech community about self-hosting a website on a solar powered Raspberry Pi.

A small Eleventy plugin I built at the end of February 2023.

CO2.js is one of the tools we’ve created to help developers drive the transition to a fossil-free internet. This article will explain the concepts behind CO2.js, it’s uses, and when other tools might be better options to consider.

A quick look at power usage profiling that's available in Firefox Dev Tools Profiler, and the accompanying CO2e measurements.

Existing models for website carbon emissions are good for reaching a ballpark figure of website CO2 emissions. This post goes into some ways to generate more specific, accurate emissions estimates.

I’m excited for the year of 2023, both professionally & personally.