Showing posts with label water stress. Show all posts
Showing posts with label water stress. Show all posts

Saturday, May 26, 2012

How Successful Are We At FreshWater Management?

A study was completed in early 2010 that mapped threats, like scarcity and pollution, to freshwater supplies at the regional level. This study shows that humankind has, so far, a good record at combating threats to freshwater security is many parts of the world.
Conclusions of the Study
1. About 80% of the world's population exists in areas where freshwater supplies are NOT secure
2. The most severe threat is to 3.4 billion people
Natural Areas of Freshwater Scarcity
Natural areas of Scarcity
Source - nature.com
Looking at the global map:
- Much of North America (especially the population centers of Canada, US and Mexico) and Western Europe is under high stress. Many areas experience extreme natural stress
- Much of Middle Africa should be fairly unstressed
- Most of India and Western China are under high natural stress.
- There are wide areas with NO natural water flows like, much of Australia, northern and Southern Africa and Inner Asia.
Impact of Human Intervention
Freshwater Managed by Humankind
Source - nature.com
Looking at this global map, some startling results are visible:
- Much of North America (except Mexico) is being managed to virtually eliminate natural unavailability of freshwater
- Middle Africa, despite being under few natural forces of water stress, is experiencing extreme freshwater scarcity
- India's water management is somewhat successful at alleviating natural water stresses but has a long way to go to be freshwater secure
- China's water management is somewhat successful at alleviating natural water stresses but has a long way to go to be freshwater secure
Assumptions underlying the Study
Undoubtedly, we need to better understand and agree with all the assumptions, subjective factors, weighing of individual threats, combining of threats, etc before people all over the world will accept how well or how poor a job they have done on freshwater security.
However, there are three conclusions that we should all be able to agree on:
A. The threat of freshwater scarcity is a common threat virtually everywhere around the globe.
B. There are two options to resolve this common threat: We can
EITHER work together, addressing the BIG scale of the threat, to find a universal solution, 
OR we leave it to individual nations and regions to work out their individual custom solutions.
C. The problem of freshwater insecurity is so large in scale that time is of the essence i.e. we must eradicate freshwater security quickly before the increasing freshwater demand overwhelms us. This increasing demand is coming in the next decade from the 500+ million people who are expected to dramatically improve their Standard of Living and the 700 million additions to the human population

Saturday, April 14, 2012

"Water Stress" Has Many Definitions

Just like the saying "Beauty is in the eyes of the beholder", Water Stress has different meanings around the globe. Remedying water-stress is difficult when few can agree on what the term means for all of them.
Water Stressed Areas
Source - news.bbc.co.uk
A large part of the world is experiencing stress on its water resources. Severely-stressed areas (red in the accompanying map) include Southwestern United States,  northern Mexico, Western and Eastern South America, vast portions of India, Northern China, much of Africa that surrounds the Sahara Desert, southern Africa and Australia (not shown)
Water stress, thus, is a fixture of both developed and developing countries

Water Stress in The Developing World
Boy Collecting Water
Source - sanakvo.org
In Asia and Africa, water stress is defined as lack of water for drinking and sanitation, both basic to human survival and good health.
This stress increases with income disparity for those in lower economic strata as the more affluent can get their water needs satisfied using their economic clout.
But even the affluent in the developing world suffer from water stress. Their stress arises from the ever-increasing water demand from production of goods and services that are the benchmarks defining someone as affluent.
Water Stress in The Developed World
Fountains in Las Vegas
Source -gothereguide.com
Water Recreation
Source - minneapolisparks.org
The inability to procure water needed to sustain economic growth and lifestyles is how water stress is defined in affluent countries.
Reducing Global Water Stress
So, it is difficult for all the world to agree on a common definition of water constitutes global water stress. And no globally supported effort can be defined and implemented to cut global water stress.The world's worsening water crisis, continues to further worsen.