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Review marginal intensity data

Status: Open.

#275 In thegreenwebfoundation/co2.js;

· fershad opened on Feb 3, 2026

Add carbon.txt lookup endpoint

confirmedSpecced out and funded things that we are committing to releaseSpecced out and funded things that we are committing to release

roadmap

Status: Open.

#273 In thegreenwebfoundation/co2.js;

· fershad opened on Dec 11, 2025

·  

0.19

Add subpath exports for estimation models

designingSpecific outcomes to address, but that we’re not committing toSpecific outcomes to address, but that we’re not committing to

roadmap

Status: Open.

Feature

#271 In thegreenwebfoundation/co2.js;

· fershad opened on Dec 2, 2025

·  

0.19

Green hosting.check() method implementation inconsistent between Node CommonJS and ESM

Status: Open.

#266 In thegreenwebfoundation/co2.js;

· dotjay opened on Nov 14, 2025

Can we move to the Node Test Runner?

help wantedExtra attention is neededExtra attention is needed

Status: Open.

#254 In thegreenwebfoundation/co2.js;

· fershad opened on Mar 3, 2025

Add a server-side estimation model to CO2.js

roadmap

Status: Open.

#234 In thegreenwebfoundation/co2.js;

· fershad opened on Oct 14, 2024

Add integrations with national/regional/local grid data APIs

data

designingSpecific outcomes to address, but that we’re not committing toSpecific outcomes to address, but that we’re not committing to

funding-required

roadmap

Status: Open.

#233 In thegreenwebfoundation/co2.js;

· fershad opened on Oct 14, 2024

Add a model object to trace function outputs

designingSpecific outcomes to address, but that we’re not committing toSpecific outcomes to address, but that we’re not committing to

enhancementNew feature or requestNew feature or request

roadmap

Status: Open.

#232 In thegreenwebfoundation/co2.js;

· fershad opened on Oct 14, 2024

Add a basic Software Carbon Intensity (SCI) implementation

designingSpecific outcomes to address, but that we’re not committing toSpecific outcomes to address, but that we’re not committing to

help wantedExtra attention is neededExtra attention is needed

roadmap

Status: Open.

#231 In thegreenwebfoundation/co2.js;

· fershad opened on Oct 14, 2024

See if adding AYUPM (As Yet Unnamed Power Model) to CO2.js is feasible

enhancementNew feature or requestNew feature or request

Status: Open.

#218 In thegreenwebfoundation/co2.js;

· mrchrisadams opened on Jul 8, 2024

Switch to a plugin style approach to exposing models in CO2.js

designingSpecific outcomes to address, but that we’re not committing toSpecific outcomes to address, but that we’re not committing to

funding-required

roadmap

Status: Open.

#206 In thegreenwebfoundation/co2.js;

· fershad opened on May 9, 2024

Add type-check and type-emit steps for type annotation code to the current js code

Status: Open.

#199 In thegreenwebfoundation/co2.js;

· mrchrisadams opened on Mar 15, 2024