The document discusses water conservation and Iran's water crisis. It defines water conservation as reducing water usage and recycling wastewater. Water conservation is important because fresh water supplies are limited and only 1% of Earth's water is available for drinking. Iran is facing a severe water crisis as water usage is 70% higher than the global average, groundwater levels have dropped, and many lakes have dried up. The document outlines several methods for water conservation including reducing meat consumption, only running full loads of laundry, turning off faucets, and installing low-flow fixtures.