Over the past century, greenhouse gases directly or indirectly produced by human activities have caused global temperatures to rise continuously. The global average temperature in the 1990s was 0.48℃ higher than 100 years ago. The global warming climate crisis has become a severe test faced by the world today. The World Meteorological Organization pointed out in the ‘2020 Global Climate Status’ report that despite the occurrence of the La Niña event with a cooling effect, 2020 was still one of the three hottest years on record. The years 2015–2020 were the hottest six years on record, and the global average temperature was about 1.2℃ higher than before industrialization from 1850–1900, causing a great negative impact on the global ecological environment.