March 22 is world water day, so let’s talk water. This day is a global event on water quality, focusing on sustaining healthy ecosystems and human well-being. It is hard to exaggerate how critical this topic is to global sustainability.
Everything we think about regarding society, environment and sustainability has a water footprint – from agriculture to transport, energy, manufacturing.
Only 2.5% of the water on earth is fresh, and only 1% of the world water can be used as drinking water. Around the world, one billion people go without clean water, and 2.5 billions don’t have access to safe sanitation. Unsafe water causes over 2.2 million deaths each year.
The basic requirement per person per day is 20 to 40 liters of water free from contaminants and pathogens for the purposes of drinking and sanitation
Water quality is defined by its desired end use, as the “physical, chemical and biological characteristics of water necessary to sustain desired water use” (UN/ECE 1995).
Worldwide water quality is declining mainly due to human activities. Increasing population growth, rapid urbanization, discharge of new pathogens and new chemicals from industries and invasive species are key factors that contribute to the deterioration of water quality (unwater.org).
Simply put, we need brilliant ideas –and the technology and money that goes with it- and strong institutions to coordinate the issue of water quality challenges.
Discover what smart people do somewhere on the planet:
http://www.mannaenergy.org/projects.html (water filtration and delivery systems powered by renewable energy)
http://www.dti-r.co.uk/ (root hydratation system)
… Keep the list going…Tell us about the projects and initiatives you are excited about
credits: sundance, Brown Button, http://www.extremeicesurvey.org/