Professor of Forest Planning at the University Institute of Sustainable Forest Management, University of Valladolid
The planet's capacity to store carbon emissions in geological formations is 1,460 gigatons, according to a study published in the journal Nature. This ceiling is likely to be reached by 2200 under current global warming mitigation scenarios, so, according to the authors, countries should reconsider the role of carbon storage in their plans to reduce emissions.
Burying woody biomass in wooden vaults would allow carbon to be extracted and stored from the atmosphere, according to a study published in Science. The authors were inspired by an eastern red cedar log preserved underground for more than 3,700 years in Canada. The team proposes burying wood from sustainable sources in a domed wooden structure designed to extend the duration of carbon storage. The authors estimate that up to 10 gigatonnes of CO2 could be sequestered annually using this technique.