As we know, climate change is accelerating and the speed will make the poles repeat as well. An international group of researchers reconstructed the recent history of ocean warming at the gateway to the Arctic Ocean in a region called the Fram Strait, between Greenland and Svalbard. Using chemical signatures found in marine microorganisms, the researchers found that the Arctic Ocean began to warm rapidly at the beginning of the last century as warmer and saltier waters flowed from the Atlantic, a phenomenon called Atlantisation, and that this change probably preceded warming.
In this article we are going to tell you all about the research on the melting of the poles.
Research
An international research team reconstructed the recent history of ocean warming at the entrance to the Arctic Ocean in the Fram Strait between Greenland and Svalbard. The researchers used chemical signatures found in marine microbes and found that the Arctic Ocean began to warm rapidly as warmer and saltier seawater flowed out of the Atlantic Ocean at the beginning of the last century. This phenomenon is called Atlantisation. This change is very important. Since 1900, ocean temperature has risen by about 2 degrees Celsiuswhile sea ice has receded and salinity has increased.
The results published in the journal "Science Advances" provide the first historical perspective on the Atlanticization of the Arctic Ocean and reveal that the connection with the North Atlantic is much stronger than previously thought.
This connection can shape Arctic climate change, and as the ice caps continue to melt, this can have a major impact on shrinking sea ice and rising global sea levels. Due to climate change, all the world's oceans are warming, But the Arctic Ocean is the smallest and shallowest ocean in the world, the one that warms the fastest.
Atlantisation
Thanks to the feedback mechanism, the Arctic warming rate is more than twice the world average. Based on satellite measurements, we know that the Arctic Ocean has been warming steadily, especially in the last 20 years, but we want to put the recent warming in a broader context. Atlantisation is one of the reasons for the warming of the Arctic, but the records of instruments capable of monitoring this process, such as satellites, only date back about 40 years. As the Arctic Ocean warms, it will cause the ice in the polar regions to melt, which in turn will affect global sea levels.
Due to the feedback mechanism, the rate of warming in the Arctic is more than twice the world average. Based on satellite measurements, we know that as the ocean melts, it exposes more of the ocean surface to the sun, releasing heat and increasing air temperature. As the Arctic continues to warm, will melt the permafrost, It stores large amounts of methane, a greenhouse gas that is more harmful than carbon dioxide. The researchers used geochemical and ecological data from marine sediments to reconstruct changes in the properties of marine sediments in the water column over the past 800 years.
Hopefully we still have time to stop climate change.