"Why is it so hot this year?

Most importantly, due to global warming, the greenhouse effect intensifies, leading to frequent extreme weather, which is easy to produce extremely strong precipitation and trigger floods; It is easy to cause no rain for a long time, resulting in extreme drought; Or cause extremely long-term high temperature weather, forming a heat disaster; For example, the continuous precipitation in Northeast China in May, June and July this year, the freezing rain and snow disasters in Guangdong and southern Hunan in early 2008, and the continuous high temperature in North China this year are the best examples.