According to a team of scientists and their study, fjords are actually important carbon sinker. The researchers said that fjords can help fight the damaging effects of global warming.
The team analyzed the sediment data collected from fjords worldwide and discovered that there are more than 18 million tones of organic carbon stored inside them each year.
The experts estimated that this is the equivalent of about 11% of the marine carbon storage on a global level, each year.
In order to come to this conclusion, the scientists have analyzed the data collected from 573 surface sediments and about 124 samples collected from sore sediments. The data was gathered from fjords around the world.
Dr Candida Savage, a researcher at the University of New Zealand, Otago and one of the scientists involved in the study, measured the amount of organic carbon burial inside the fjords and found that it’s almost two times larger than the average found in oceans.
According to Dr. Savage, even if this accounts for only 0.1% of the oceans’ surface area, fjords are still very important place for organic carbon burial.
Fjords formed at high latitudes during the glacial period as the glaciers cut through large valleys near the coast. They are famous for their natural beauty and are found in regions like Europe, Antarctica, New Zealand, North America and Greenland.
Fjords are low and deep oxygen marine systems and provide a good site for sediments that are rich in sediments to accumulate in them.
Carbon burial is the natural process where carbon sediments are being buried, making it the largest carbon sink in the world.
This natural process can also influence the levels of atmospheric carbon dioxide at a yearly scale of many thousands.
Researchers say that during the periods when the ice sheets are retreating, fjords play a very important role because they drive the levels of atmospheric carbon dioxide.
According to the experts, at the moment, our planet is in the Interglacial period. Before Earth entered this, it was in a period where ice sheets were actually receding. This happened approximately 11,700 years ago.
During the period of glacial retreat, fjords trapped massive volumes of organic carbon that was flowing out to the continental shelf. This is where carbon dioxide is produced through different chemical processes.
Dr. Savage wrote in her study that fjords act like a storage site for organic carbon when our planet is in between glacial periods.
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