Carbonable, a startup that uses the public Ethereum blockchain to track carbon contributions and help prevent greenwashing, has raised $1.2 million in a seed round led by Ethereal Ventures and La Poste Ventures.

Carbonable uses the Ethereum scaling overlay built by Starkware, which is also an investor in the seed round, to keep tabs on the carbon credit lifecycle, from the selection of the projects to the monitoring, issuance and retirement of carbon credits.

(By Ian Allison)