Global Construction C-Sink – Public Review

Good day

We are thrilled to announce public consultation for our new Global Construction C-Sink Standard. This brand-new and innovative standard is being developed in collaboration with Ithaka Institute for Carbon Strategies and can be used in the construction and building industry.

The Global Construction C-Sink Standard

The Global Construction C-Sink Standard certifies buildings and civil engineering works that contain biomass-derived Carbon Sink (C-Sink) Materials. The biomass contains organic carbon, which is based on the fact that CO2 was previously actively removed from the atmosphere. This biomass, examples of which include hemp or biochar, is incorporated into the building materials and thus represents a carbon sink. Each certified construction is considered a C-Sink Unit and can be registered in our publicly available Global C-Sink Registry if all GHG emissions that were caused by the production and transportation of the embedded Construction C-Sink Materials were offset.

Consultation Period: 17 February – 18 March 2025

We welcome feedback from all stakeholders during this period. Your input is invaluable to our standard development process, ensuring transparency and informed decision-making.

How to participate?

1. Download the standard version 0.91 from our website.

2. Send us your feedback using the form below.

3. Join our webinar on Tuesday, March 11, 2025 from 14h00 to 16h00 CET.

We look forward to your contributions to ensure a robust, scientifically sound standard.

Kind regards,

Carbon Standards International AG

Ueli Steiner
CEO

E-mail