It’s early in autumn. Will it be cold in autumn and winter this year? According to the latest news of the National Climate Center on October 22, a weak to medium intensity La Nina event will be formed in winter. The La Nina event occurred in the autumn and winter of 2020-2021. The La Nina event will form again this winter, that is, the “bimodal La Nina” will occur in winter for two consecutive years. Therefore, 2021 will be the “double La Nina year”. This La Nina event may have a more signifi...