World's first artificial snowfall!

Have you ever heard about artificial snow fall?,no, then read ,In china, in the city of Beijing snow fall started in the  earlier days of the month of November, however in Beijing snowfall usually started in the month of December, people were very much astonished to see that , as they were not prepared and they were not expecting that sudden snowfall and the snow fall was too heavy that it  jam the traffic, block the roads , flights were cancelled and the traffic control management  decided to close the five major highways as a precaution to not to meet an accident.About hundreds of the international flights were cancelled.Everybody wants to know about the reason behind this snowfall which has happened unusually two months before,even the tourists wants to know , then weather modification office of Beijing city announced that to reduce desertification they adopted a method for artificial snowfall and it was the world's first artificial snowfall ever had.It is very much surprising that scientists from Russia are trying to stop snow fall in Moscow and Chinese scientists are making attempts for artificial snow fall, now the question is how they do that?Actually the scientists have fired cigarette size silver iodide sticks on the clouds with the help of rocket launchers and as a result snowfall started on very large scale .According to British newspaper Chinese scientist have also tried to do snowfall in the month of February 2011 in  the northern areas of China which remain extremely affected by dry winds.For this they have established rocket fire stations at twenty eight different places.Weather modification office has shown its concerned that day by day increasing world's temperature will be havoc, it may cause ice on the glaciers to be melt ,and it will not be a good sign for human life,Chinese scientists have challenged that it will help in controlling the world's temperature.