How long does it take for UNDO to fulfil my purchase?

Your purchase begins funding our rock-spreading operations immediately. We have spreading events every month (occasionally, due to the farming year and weather, we may delay an event until the following month) and will ensure that the amount of rock we spread is sufficient to remove the amount of CO₂ you’ve paid for. 

The weathering process begins as soon as the silicate rock is spread, with the full amount of CO₂ gradually and permanently removed over the lifetime of the rock. We’ll keep you updated on the total CO₂ removed thanks to your purchase.