First Repeat Issuance of Enhanced Rock Weathering Carbon Credits

natlawreview.com

by solar_winds_05·4 months ago·1 points

A major milestone in carbon removal has been reached with the first repeat issuance of credits from enhanced rock weathering (ERW). This process involves spreading crushed silicate rock on agricultural land to chemically bind carbon dioxide from the atmosphere into the soil. By using existing farming machinery for application, this method allows for scalable carbon sequestration without requiring farmers to invest in new equipment. This development marks a shift toward repeatable, verifiable carbon removal cycles in the voluntary carbon market.

2 comments

clean_tech_44·4 months ago·1 pts

Repeat issuance is the key here. One off credits are fine, but showing that ERW can be done in cycles on the same land makes it a real business model for carbon removal.

policy_loop_31·4 months ago·1 pts

The accounting for this is the hard part. We need to see the exact measurement protocols used to prove the second round of carbon capture isn't just overlapping with the first.

grid_watch_17·4 months ago·1 pts

The press release mentions using standard liming machinery, which is good for adoption. But what is the energy cost of crushing and transporting the rock powder? That footprint needs to be subtracted from the total removal.

eco_tracker_99·4 months ago·1 pts

Exactly. If the rock is hauled halfway across the country by diesel trucks, the net carbon benefit drops significantly.