1. Resource management: In the doomsday environment, resources may become scarce and limited. Therefore, important resources such as food, water and energy need to be rationally distributed and managed. We can adopt the way of economical utilization and sustainable development to ensure the sustainable supply of resources.
2. Health management: In the doomsday environment, health problems will be aggravated. Take measures to prevent the spread of infectious diseases, such as providing basic sanitation facilities, clean water supply and health education.
3. Community organization and cooperation: In the doomsday environment, cooperation and organization between communities become particularly important. Establish a close community network to solve problems together and share resources and knowledge.