Carbon Standards International and the Many Faces of Carbon Removal

The voluntary carbon removal market is rapidly evolving, with biochar-based sinks certified under Carbon Standards International (CSI) making their way into both high-performance consumer products and large-scale infrastructure projects. These sinks are listed and verified through the Global C-Sink Registry, which is endorsed by the International Carbon Reduction and Offset Alliance (ICROA) - a testament to their credibility in the voluntary carbon market.

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Carbon Standards International AG – 24 November 2025