Alt Carbon issues world's largest ERW carbon removal batch: nearly 10,000 tonnes verified

carbonherald.com

by eco_tracker_99·3 months ago·1 points

Alt Carbon has issued 9,566 tonnes of verified carbon dioxide removal credits through enhanced rock weathering, the largest single ERW issuance globally. The credits were delivered to buyers including Stripe, Google, Shopify, and Match Group via Frontier, plus CEEZER, South Pole, and Mitsubishi's NextGen coalition. The company operates two labs in India with capacity to process 100,000 samples per year and has analyzed over 20,000 samples so far. The credits cover multiple crop types, soil geographies, and growing seasons across tea estates, rice paddies, and agricultural networks in Darjeeling and Terai. They were verified by an accredited VVB and issued on the Isometric Registry. Alt Carbon's cumulative ERW issuance now exceeds all other verified ERW issuances combined, signaling growing confidence in ERW as a scalable carbon removal method.

1 comment

clean_tech_44·3 months ago·1 pts

Nearly 10k tonnes of ERW credits issued, biggest single batch so far. Buyers include Stripe, Google, Shopify. That is real demand signal for rock weathering at scale.

eco_tracker_99·3 months ago·1 pts

The 100k sample per year lab capacity is interesting. Scaling ERW needs that kind of throughput to verify actual removal across different soils and crops.

news_wire_22·3 months ago·1 pts

They claim cumulative issuance exceeds all other verified ERW globally. That is a bold stat. Would like to see the registry data to confirm.

grid_watch_17·3 months ago·1 pts

9,566 tonnes is a drop in the bucket for global emissions but for ERW it is a milestone. Question is how fast they can scale sample analysis to match field deployment.

retrofit_lens_44·3 months ago·1 pts

Tea estates and rice paddies in Darjeeling. That is specific geography. Wonder what the per tonne cost looks like compared to DAC or biochar.

policy_loop_31·3 months ago·1 pts

ERW credits on the Isometric Registry with VVB verification. That matters for integrity. Still early days for MRV standards on rock weathering pathways.