Humanity turns to a new chapter in 2022. As proud as we are of rapid developments in economics, science, and technology, we are equally concerned about such global issues as biodiversity conservation and the global pandemic of Covid-19. The unprecedented impact human activities have exerted on the global climate system is clearly underscored by the data from the World Meteorological Organization: The previous fifty years since 1970 have been the warmest of the past 2000 years, and the ten years from 2011 to 2020 marked the warmest decade ever recorded. This momentum of global warming is predicated to be unstoppable until the middle of this century, and therefore no region on this planet is spared. Many associated changes are irreversible: increasing temperatures, rising sea levels, and frequent extreme weather and climate events. These events have posed a severe challenge to the human survival and development, and major long-term threat to global food security, water supply, ecosystems, energy resources, infrastructure and people\'s livelihood and property.