How much of earths water can people use?

Only about 2.5% of Earth's water is freshwater, and of that, a mere 1% is easily accessible for human use, as the rest is trapped in glaciers and ice caps. This means that less than 0.1% of the total water on Earth is available for drinking, agriculture, and industry. Consequently, water scarcity is a significant issue in many regions, highlighting the importance of sustainable water management practices.