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Carbon sequestration via wood burial and storage

A novel concept has emerged recently for carbon sequestration by wood burial and storage (WBS), in which forests are managed to optimal productivity and selected coarse woody materials are harvested, then buried in trenches or stowed away in above-ground shelters to prevent decomposition. Because a large flux of CO2 is constantly being assimilated into the world’s forests by photosynthesis, cutting off its return pathway to the atmosphere forms an effective carbon sink. The stored wood is also a carbon/energy ‘bank’ that can be a biomass reserve should future biofuel technologies such as cellulosic ethanol become practical. The theoretical potential is estimated at10 GtC y, and the practical potential at 1-5 GtC y, and the cost at $7-27/tCO2. The technique is distributed, safe, easy to verify and monitor. The proposed research aims at quantifying its efficacy, cost and potential impact through a demo project, modeling and interdisciplinary life cycle analysis.