1. Climate change and global warming: study the impact of climate change on the earth, including sea level rise and the increase of extreme weather events.
2. Urbanization and land use change: study the impact of urbanization on land use, including urban expansion and land cover change.
3. Natural disasters and risk assessment: study the mechanism and impact of natural disasters, and how to assess and manage disaster risks.
4. Water resources management: study the distribution, utilization and protection of water resources, including the hydrological cycle and sustainable utilization of water resources.
5. Biodiversity and ecosystem services: the study of biodiversity and ecosystem functions on Earth and their contribution to human welfare.
6. Population migration and urbanization: study the causes and effects of population migration and the social and economic effects of urbanization.
7. Geographic Information System (GIS) and spatial analysis: Study how to use GIS and spatial analysis technology to understand and solve geographical problems.
8. Economic geography: study the spatial distribution and regional development of economic activities, including industrial agglomeration and urban competitiveness.
9. Geography of environmental health and human health: study the influence of environmental factors on human health, including air pollution and water pollution.
10. sustainable development and urban planning: study how to achieve the goal of sustainable development, including urban planning and transportation planning.