Snow Bomb in Gyeongsang-do

http://news.chosun.com/site/data/html_dir/2012/12/28/2012122801775.html

Huge amount of snow fell in Dec.28 in Yeoungnam. It was the heaviest snowfall in 60 years in Daegu. Originally, Yeoungnam districts (southern part of Korea) is one of the warmest area and there are little or no snow in winter of course. However in 2012 there were heavy snow. I live in Seoul and I feel it snows more than last year and much colder, too.
I think all of these wierd weather condition is caused by global warming. As many people think that climate would change hotter and hotter by global warming, but it is not true. Global warming cause not only hotter days but also colder days. This is because as the Earth become warm, ices in north pole melt more and above the empty sea, water vapor created more. This vapor make huge snow in Siberia and that snow develop cold Siberian continental articyclone. This is mechanism of colder weather by global warming.
Again, I decide to use disposable products as little as I can and keep the Earth clean.