AcceleratedOlivineEnhancedWeathering(ERW)

Why It Matters

This technology tackles the slow pace of the natural carbon cycle and helps mitigate atmospheric CO2 concentrations and ocean acidification. A future where ERW is mainstream could involve agricultural lands becoming carbon-negative, with enhanced soil health, or coastlines contributing to ocean restoration. Mining companies and the agricultural sector could see significant growth, while some direct air capture firms might face competition from a potentially cheaper alternative. Main technical barriers include the high energy cost of grinding rocks, efficient transport to deployment sites, accurate monitoring of CO2 uptake, and potential ecological impacts on soil chemistry or marine ecosystems. Significant impact is likely in the 2040s, with countries like the UK, US, and Australia actively exploring its potential. A second-order consequence is the potential for new mining and processing industries focused on specific silicate minerals, leading to new economic opportunities but also environmental considerations related to extraction.