A group of researchers from the UK, Switzerland, and the Czech Republic have proposed a unique approach to address carbon storage by sinking mature trees from the expansive boreal forest into the deep Arctic Ocean. This strategy aims to sequester carbon for extended periods, combating the release of carbon back into the atmosphere when trees decay or burn.
Using computer modeling, scientists explored the impact of removing specific stands of old trees in fire-prone regions such as Canada, Alaska, and Russia. These trees would then be floated down rivers like the Yukon and Mackenzie and submerged in the Arctic Ocean. Simultaneously, new fast-growing trees would be planted to enhance carbon absorption.
The study suggests that by implementing this process annually in selected areas covering a small percentage of the boreal forest, about one gigaton of carbon dioxide could be extracted from the atmosphere each year. Despite this promising potential for carbon storage, the project’s scale raises concerns regarding energy consumption, associated carbon emissions, and environmental impacts.
Furthermore, the removal of mature trees from forests disrupts ecosystems and biodiversity, affecting various life forms dependent on these trees. Additionally, the initiative could impact the traditional lifestyle of Indigenous communities residing in these regions.
While such geoengineering concepts offer innovative solutions to combat escalating carbon emissions, they also pose uncertainties and risks related to altering natural systems. Ultimately, addressing the root cause of the issue, namely reducing reliance on fossil fuels, remains pivotal. Transitioning to clean energy sources like solar, wind, nuclear, and fusion power is crucial for sustainable and effective carbon mitigation efforts.