Yes - time and degradation is key. All evidence we have as of today suggests close to none degradation of the lignin, and if/when eventually some degradation happens (yet to happen on the roads we have from 14y back), sequestration downwards in the soil, from the deep stabilized road layer we have bound with lignin. This is a very important area for us to pioneer research on going forward to get completely right, thanks for all the comments here, it will help us sharpen our efforts.
kroil|3 years ago