It's been quite chilly since the end of last year. Lately, it gets as low as minus 10 degrees C early in the morning in this area. It rises only up to several degrees C even in the day time. It has been windy as well for the past few days. I have never experienced this weather ever since we were settled down here some 40 years ago.
Someone may doubt of the global warming in this aberrant weather seemingly on the contrary to it. I am not quetioning that myself but wondered what was causing this cold wave.
In Face Book, a researcher of farming has given an answer to such a question.As the illustration below shows, there is the polar vortex in the north pole, that is, a strong band of winds. The global warming has disrupted it and has caused cold atmosphere flow down in the north hemisphere. It is the cause of this cold snap. On the other hand, the north pole is warmed and the ice is thawed there, which might cause another disturbance in weather/ocean physics so far as I understood.
This might explain what has caused cold snap in the North East US and a part of Europe.
The global warming brings about extreme changes in the weather. Such as typhoons in the summer may get overwhelmingly big and strong. It might disturb farming as well as fihsery. Some areas may suffer from dry heat in the summer. Mother Nature may revenge what human beings have done for the past century or the past decades. We should make efforts to stop deranging the nature and to reverse it to normal. I hope we have not gone over the point of no return.
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