Briefly summarize the environmental problems facing South Asia. (4 points)
1. Air pollution: South Asia faces severe air pollution due to high levels of vehicle emissions, industrial pollution, and crop burning. This has led to health problems and environmental degradation.
2. Water scarcity: Many areas in South Asia face water scarcity due to over-extraction of groundwater, pollution of rivers and lakes, and inadequate infrastructure for water management.
3. Deforestation: Rapid urbanization and industrialization in South Asia have led to widespread deforestation, threatening biodiversity, and contributing to climate change.
4. Climate change: South Asia is vulnerable to the impacts of climate change, including extreme weather events, rising sea levels, and changing monsoon patterns, which have serious implications for agriculture, water resources, and human settlements.