haakonzen

We don't think we are the greatest thing since sliced bread either! But thanks for the encouragement and good points, we try and hope we can point the carbon needle a meaningful push the right way with the means at our disposal - and this we will keep on doing, now fed with more inputs & insight

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.

Great thread, thanks all for the passion for this important topic. Just to clarify; we go from 7-10kg CO2 positive for traditional methods, to 5 kg negative pr m2 in two steps; Step one is we reduce emissions from value chain; incl. transport, & extraction when our Crusher recycles the road, which takes us to just above 1kg pr m2 (massive savings already from the traditional method). The remaining ca -6 kg is the effect of lignin - turning the calculation towards negative - and here debated in the thread with different opinions.

Thanks a lot for that! :)

Thanks a lot! So do we :)

Thanks a lot! We are in closed beta mode right now. Yes you are on point here. As premium surveillance feature will add this to the cost per m2 / mile road, the monthly price will depend on the number of pictures for our customer and it will cost extra for e.g. hyperspectral satellite images. For per-request quotes we are trying to find a suitable way to make it work so we can cover the cost. All thoughts / inputs appreciated :)

Yes exactly, that's how we think about it. We are using nature's own capture machine, trees... thanks for this clear explanation :)

2. With the Crushers we have today, we can reduce 25.000 tonnes this year, but we could in theory make 10x more Crushers for next year taking us to 250.000 tonnes next year. The demand is definetely there, scaling the sales & operation is the thing we work hard on. That's also why we are working on launching our crushing as a service model which will ease both operations and logistics globally. Refining and building hardware is not a limiting factor per se.

1. Great question! Different academic experts claim lignin would be very stable in roads and stay there for a long time, and that when some degradation eventually happens, it will sequester downwards and become part of the soil. Deepdive: We have made roads 14 years ago which are still stable and in good quality today, indicating there hasn't been much degradation of the lignin to speak of. Adding here also a quote from an academic paper: “... the end-product of lignin decomposition in nature contains partially decomposed, fragmented lignin (humus) that enters the soil cycle, and remains in this layer for many years. Release of H2O and CO2 as decomposition products in this layer is extremely limited. Soil bacteria, microfauna, and even physical processes may play important roles in the final breakdown of humus. This is a slow process and some lignin degradation products have soil residence times of centuries (Ziekus, 1981).” - So, while we don't have the complete answer to speed of degradation yet (workin on it!), it seems it would stay beneath the ground far more than long enough to help our planet.