What is Rainwater Harvesting?
Rainwater harvesting is the accumulation and deposition of rainwater for reuse on-site, rather than allowing it to run off. Rainwater can be collected from rivers or roofs, and in many places the water collected is redirected to a deep pit (well, shaft, or borehole), a reservoir with percolation, or collected from dew or fog with nets or other tools. Its uses include water for gardens, livestock, irrigation, domestic use with proper treatment, and indoor heating for houses etc. The harvested water can also be used as drinking water, longer-term storage and for other purposes such as groundwater recharge.
Advantages
Makes use of a natural resource and reduces flooding, stormwater runoff, erosion
Reduces the need for imported water
Promotes both water and energy conservation
Home systems can be relatively simple to install and operate & may reduce your water bill
Dis-Advantages
Can be costly to install
Limited and uncertain local rainfall
Certain roof types may seep chemicals, pesticides, and other pollutants into the water that can harm the plants
Requires some technical skills to diagnose and provide regular maintenance
Global Risk
The water crisis is the #1 global risk based on impact to society (as a measure of devastation), as announced by the World Economic Forum in January 2015
1.8 Billion
By 2025, 1.8 billion people will experience absolute water scarcity, and 2/3 of the world will be living under water-stressed conditions
70%
Water for irrigation and food production constitutes one of the greatest pressures on freshwater resources. Agriculture accounts for ~70% of global freshwater withdrawals
8 Million
6 to 8 million people die annually from the consequences of disasters and water-related diseases.
663 Million
1 in 10 - lack access to safe water
85%
85% of the world population lives in the driest half of the planet
Crafted with
By Rajat Mukati
Credits
Designed & Developed By
Rajat Mukati
