We all know about the loss of sea ice in the Arctic. Apparently, there are two factors that affected the Arctic sea ice. One of them is human activity. Despite the fact that human activity is an important factor, natural changes are also the ones that caused the loss of sea ice.
A new study shows that there are two factors that should be taken into consideration when we talk about sea ice loss. This study is a rare attempt because it wanted to quantify the contribution of nature and humans to this problem. Despite the fact that it is hard to calculate for sure the effects of human and the contribution of nature, the researchers were able to estimate them.
Natural Changes Affected The Sea Ice
Although many people don’t believe in climate change, its effects can be seen. The Arctic is an area that has been affected by this phenomenon. The sea ice is melting, more and more, every day. This change is also affecting the animals that live there. Polar bears, for instance, are endangered animals due to the fact that they are losing their habitat.
People have been debating a lot on the matter of natural changes causing sea ice loss. This study showed that almost 60% of the sea ice decline was caused by changes in atmospheric circulation. When they combined the results from the summertime changes and the fall and winter one, they observed that nature is the one to blame for 40-50% of sea ice loss.
Human Activity affecting the Arctic
Since less than 50% of sea ice loss was caused by natural changes, this leaves a 50% to human activity. Researchers mentioned that this is not great news at all. This shows that human activity has an effect on the entire world
“Continuing to put carbon dioxide and other emissions into the atmosphere is having a direct negative impact on the Arctic, including sea ice,” mentioned Twila Moon from the University of Bristol
This research was conducted in order to help people understand the damage that was done to the Arctic. The scientists mentioned that it is important to know the factors that affect the sea ice before we can try to save it.
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