Playing the devil’s advocate on durability
Durability - the length of time carbon is removed from the atmosphere - is for many market participants becoming the central factor when assessing the integrity of carbon dioxide removal (CDR). Frontier, the CDR fund spearheaded by Stripe, has a strict criteria that any recipient of funding must have at least 1,000 years of durability.
But why, I hear you ask, are we fixated on storage that lasts longer than the Bayeux Tapestry? Why an entire millenia? Why not 500 years, or 200 years?