On May 28th, the south welcomed the first round of large-scale hot and stuffy weather this year, with temperatures exceeding 35 ℃ in many places such as Shanghai, Hangzhou, Nanjing, and Hefei, giving people the feeling of "summer in a second". The World Meteorological Organization (WMO) recently released its latest assessment report, stating that the possibility of an El Ni ñ o climate phenomenon in the Pacific region this year is increasing, and it is expected to bring high temperatures and extreme weather.