Why is it still cold and abnormal in March?

Where did the landlord come from? It is also very cold here in Chengdu this year. In fact, the weather has been unstable for the past two years. Whether it is the snowfall in the south or the snowfall in the north in the previous two years, the national temperature rises obviously in summer, which may be a sign that the earth has entered a new geological period. The earth has experienced several ice ages before and after. Scientific research shows that global warming is not entirely due to excessive emissions of greenhouse gases. The earth itself is entering the warm period of the ice age, but the emission of greenhouse gases has accelerated this process. Don't worry, it's not a local problem. Now the earth's crustal movement has entered a relatively active period, and the global earthquake is an example.