Meteorologists predict extreme cold winters, despite the advancing phenomenon of global warming. The change seems to be triggered by jet streams, which are air currents. Groups of scientists argue on the right approach to the problem and try to come up with an explanation.
There are specialists who believe that jet streams are responsible for the predicted extreme cold winters that lie ahead of us. They were also behind the harsh winter experienced by New Yorkers two years ago (2014/2015), as the scientists explain.
On the other hand, there are experts who believe that global warming is related to the phenomenon of cooling as well. They explain that while some parts of the word are experiencing rising temperatures, other regions can go through cold periods. Such is the case of the United Kingdom and the Eastern part of the United States.
Now, three leading specialists gathered a team of international researchers who had different opinions on the matter. They reached the conclusions that both sides are right. In other words, both the jet streams and global warming stand as main causes of the extremely cold winters that are to come.
Specialists explain that wavy jet streams can trigger weather changes and bring about low temperatures. They flow from the Arctic towards the continents nearby, resulting in extreme cold winters. However, if the jet streams are rather straight than wavy, and travel from west to east, then the seasons are more likely to follow their natural course and display normal temperatures.
The patterns of straight and wavy jet streams usually interchange. However, the researchers observed that the wavy patterns have been present especially in the last twenty years. The period coincides with the time when the Arctic started to experience ice loss as a result of global warming.
The researchers will focus on the exact relation between jet streams and global warming and how they are influencing one another. This will help them understand what will happen to certain parts of the world that are bound to experience extreme cold winters over the next years.
Further research would bring additional information. For the time being, the specialists have investigated the connection between the two phenomena and their result. However, their study accounts for the possibility of global warming in the Arctic to be triggering the change in jet stream patterns.
The study was published in the journal Nature Climate Change.
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