What is a method for conserving freshwater?

Rainwater harvesting is an effective method for conserving freshwater because it involves collecting and storing rainwater for future use. This technique reduces dependency on conventional water sources such as rivers and aquifers, which are often over-extracted and can lead to depletion and environmental degradation. By capturing rainwater, households and communities can supplement their water supply, particularly in areas prone to drought or limited freshwater resources.

In addition to conserving existing freshwater supplies, rainwater harvesting can help reduce surface runoff and erosion, promoting better water quality and enhancing groundwater recharge. This approach is sustainable and can be implemented on both small and large scales, making it a versatile solution for water conservation.

Other methods like desalination involve converting seawater to freshwater but are typically energy-intensive and expensive, making them less practical for large-scale conservation. Increased irrigation could lead to greater overall water consumption, while water diversion can disrupt natural ecosystems and reduce the availability of freshwater in certain areas.