Researchers from the United States have carried out large-scale drilling along the California coast. After analyzing 83 cores, they discovered that beneath the surface, at a depth of about three meters, there are thick layers of carbon-rich sediments. This discovery changes the way coastal ecosystems play a role in combating global warming.
A team of scientists researched history of carbon accumulation in the salt marshes and mangroves of California. It turned out that these territories have been working as giant traps for greenhouse gases for centuries. Instead of being released into the atmosphere, carbon is sequestered in dense layers of soil and remains there for decades and centuries.
The rate of carbon accumulation in these places was surprisingly high. In essence, California’s coastal wetlands act as a natural reservoir that gradually absorbs carbon. The older and deeper the layer, the more carbon is conserved in it.
This discovery offers hope for mitigating climate impacts. If similar processes occur in other regions, it means that nature already has a built-in mechanism for protecting itself from its own overheating. The task of man is not to disrupt these mechanisms, but, if possible, to restore ecosystems.
The practical benefits are clear: conserving and restoring coastal marshes, salt marshes and mangrove forests becomes not just an environmental measure, but a direct way to lock carbon into the ground. Unlike technological methods of capturing and storing CO2, nature does it for free and without the risk of leaks.
The California study is part of a broader trend. Scientists are increasingly finding evidence that the Earth has powerful reservoirs of carbon hidden deep below the surface. This is the underground ocean in the mantle, enclosed in the mineral ringwoodite, and the so-called deep biosphere, where 70% of all bacteria on the planet live.
But if those discoveries only expand our knowledge about the planet, then the Californian swamps give specific instrument for climate policy. By conserving these ecosystems, humanity is not only protecting biodiversity, but also enabling a natural mechanism that has held back the effects of the Industrial Revolution for decades.
Source: ecoportal.net
Image: ecoportal.net
