Discover How Some Fig Trees Transform CO2 into Stone: A Surprising Ally in the Fight Against Climate Change!

While most trees are known for capturing carbon dioxide, some have a unique ability: they can turn CO2 into stone. Recent studies focus on certain fig trees in Kenya that excel in this carbon-storing technique. This could offer a fresh approach to tackling climate change.

New findings presented at the Goldschmidt geochemistry conference highlight how these fig trees can sequester CO2 in a stable form, potentially making them key players in climate change strategies. Unlike typical carbon memories, which break down over time, this inorganic carbon can stay in the soil for much longer.

Typically, we hear about trees removing CO2 to produce oxygen. A recent study suggests global forests could capture about 226 gigatons of carbon if protected from human activities. While organic carbon storage gets a lot of attention, the inorganic process, where some trees convert CO2 to calcium oxalate crystals, is less discussed.

Here’s how it works: these crystals decompose through microbial action, transforming into calcium carbonate, the main component of limestone. Interestingly, even termites help in this process by moving fallen leaves into their mounds, where microbes further aid the conversion of carbon.

The research team identified three fig tree species in Kenya that successfully initiate this process. Calcium carbonate forms on and within these trees, making the surrounding soil more alkaline. Mike Rowley, a biogeochemist at the University of Zurich, noted that this deeper sequestration was previously underestimated.

One notable fig species, Ficus wakefieldii, is particularly effective in sequestering CO2. Future studies will explore its carbon storage capabilities in diverse climates. Historically, the focus has been on other non-fruit-producing trees, like the Iroko tree in West Africa, which can sequester one ton of calcium carbonate over its lifetime.

Experts believe there might be even more possibilities for carbon sequestration through inorganic means, considering how widespread calcium oxalate is in nature. By increasing the planting of these fig trees, we may find a sweeter solution to combatting carbon emissions.

This highlights a growing trend on social media, where conversations about innovative climate solutions are growing. The potential of these trees is not only fascinating but could be a significant step forward in the global fight against climate change.

For further insights into carbon storage solutions, you can check out this study on forest recovery.

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