By Marcelo Kawanami
On March 20 2015, United Nation released its 2015 edition of the United Nations World Water Development Report (WWDR 2015), titled Water for a Sustainable World. The report brings a throughout analysis on the importance of the water as a vital resource for life. It also describes the challenges for accessible and clean water from three dimensions: poverty and social equity, economic development, and ecosystems.
I selected some key findings from the report that I believe were quite interesting (and concerning):
– Around the world, 748 million people lack access to an improved drinking water source, while billions more lack drinking water that is really safe. In 2012, 2.5 billion people did not have access to an improved sanitation facility.
– Groundwater supplies are diminishing, with an estimate 20% of the world’s aquifers being over-exploited (Gleeson et al., 2012), leading to serious consequences such as land subsidence and saltwater intrusion in coastal areas (USGS, 2013).
– Achieving more efficient water use is crucial considering that production and consumption of agricultural products alone account for over 70% of water withdrawals in many developing countries.
If you like to download the full report, please United Nation World Water Assessment Programme (WWAP) homepage: http://www.unesco.org/new/en/natural-sciences/environment/water/wwap/wwdr/2015-water-for-a-sustainable-world/