Human: What are the primary causes of the global water crisis? Assistant: 
The primary causes of the global water crisis are over-extraction, pollution, climate change, and inefficient water management. Over-extraction is when too much water is taken from rivers, lakes, and aquifers for human use. Pollution can come in many forms such as chemical contamination, agricultural runoff, and industrial waste. Climate change has led to more extreme weather events like droughts and floods, which have caused an increase in the amount of precipitation that flows into the ocean instead of being stored in groundwater or reservoirs. Inefficient water management refers to how governments, businesses, and individuals manage their water resources.