ECNS, November 10 (reported by Guorong Jia)--A while after midnight today in Beijing, a streak of lightning and a clap of thunder startled Baidu, then quietly snow began to fall heavily, gradually covering the city in silver. The heavy snow was formed as a result of the encounter between the northern cold current and the warm humid current during the night. When people woke up in the morning, they were delighted by the white all around them, but they were also troubled by the inconvenience caused to their commutes to work and school.