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The Rivers are Dying, What We Can Do to Save Them

The Rivers are Dying, What We Can Do to Save Them

80 percent of animal life rely on the various rivers and groundwater for survival. Unfortunately with human population on the rise, various pollutants and interferences with the river’s ecosystem has left 65 percent of the world’s rivers in danger of losing biodiversity due to stress factors. Thankfully, there are some cheap and easy solutions to this problem.

Water security is becoming increasingly important all over the world especially after several years of severe drought. A recent report by Nature considers factors that affect both human water security and biodiversity in an analysis of the threats to freshwater resources. Researchers from The City College (CCNY) of The City University of New York (CUNY), University of Wisconsin and seven other institutions have identified 23 different stressors to rivers, which include: effects of pollution, dams and reservoirs, water overuse, agricultural runoff, loss of wetlands and introduction of invasive species [Source: Eureka Alert]. Unsurprisingly, regions with intensive agriculture and dense human settlement tend to have some of the most stressed water supplies in the world. While most humans use groundwater as their primary source, any changes in rivers would mean altered migration routes, fewer defenses against flooding and erosion, and other issues that directly impact humans. Local impacts are transported downstream and 30 out of the 47 largest rivers around the world record at least medium threat levels at the mouth, with only the most remote parts of the Amazon recording low levels. Some of the most threatened rivers are in the US with many making the endangered list, such as the Rio Grande. Fortunately, countries like the US are able to invest in engineering solutions to provide fresh water, though researchers estimate that by 2015 a combined investment of $800 billion will be required to cover the global water infrastructure [Source: Treehugger].

Fortunately, a lot of the solutions are very simple and cheap and look into maintaining water security as well as biodiversity. Keys to successful rehabilition of these rivers can be done by identifying then limiting threats on a local level rather than creating costly programs that would treat the symptoms rather than preventing them in the first place. For example, instead of creating new dams, engineers can re-work dam operating rules for maximum economic benefits while providing water releases downstream to preserve habitat and biodiversity. While industrialized countries can spend the money for these treatment facilities, poorer countries like China and India cannot afford these programs. Localizing the problems are much more cost-effective and, when combined with an integrated water resource management (WRM) strategy, more effective in general. Instead of just treating the water, the WRM strategy approaches ways to decrease stressors by focusing on better land management, irrigation techniques and protecting ecosystems. Dr. Charles Vörösmarty of CUNY states that in terms of the bottom-line “it would be more cost effective to ensure that river systems are not impaired in the first place…” and believes that integration of better water management worldwide is “absolutely essential” [Source: Eureka Alert].

Vörösmarty’s ideas are simple enough and approach water security in a global, yet local way. While his strategy for better water management is still vague, the ideas are solid. The only problem here is pushing the governments and corporations to focus on preventing the problem rather than treating it, and that would require some changes in the way they run their business.

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Nature
Jasmine Greene

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48 comments

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12:55PM PST on Dec 5, 2010

I just don't like the fact that it seems we are making things more complicated when we look for a solution.

2:32AM PST on Nov 10, 2010

The answer is - STOP The Livestock Industry
There are many environmental consequences of human food choices, and the water used by the agriculture sector - mainly the livestock industry - which uses the most water. Approximately 70% for agriculture all up, about 20% by businesses, and about 10% used in homes
Raising animals for food requires enormous amounts of water
According to statistics it takes between 50,000 to 100,000 litres of water to produce 1 Kilo of beef
20,000 litres of water to produce 1 kilo of butter
Whereas it takes about 5,000 litres of water to produce 1 kilo of rice, about 2,500 litres of water to produce wheat, and even less than that for corn and potatoes
The livestock industry is using all our water, and at the same time creating the hottest greenhouse gases such as methane which is 72 times hotter over a 20 year period than Co2, and nitrous oxide which is about 300 times more potent than Co2. By cutting down on livestock, we will use less water, and also the hottest GHG's will be taken care of as methane for instance leaves our atmosphere within 10-12 years, whereas Co2 hangs around for possibly thousands of years. At the moment the current Co2 levels are being adjusted by the aerosol factor in our atmosphere, that is to say, one is balancing out the other, so according to scientists the GHG's that are heating up our planet and creating wild weather and rampant out of control fires across the globe, are from the animal agriculture industry.

1:33PM PDT on Oct 26, 2010

We need to focus on the causes of water contamination/loss and eliminate them. Stop dumping pollutants in waterways, stop burning fossil fuels which are acidifying the waterways and ocean, stop the use of petroleum based pesticides and insecticides, start using alternative energy and natural farming methods for starters. All living things need health water.

9:02PM PDT on Oct 7, 2010

Thanks

11:48AM PDT on Oct 7, 2010

Thank you Jasmine!

3:34AM PDT on Oct 6, 2010

thanks for the article

5:23PM PDT on Oct 4, 2010

with water as such a universal necessity, we need to share and value it, not waste it

11:21AM PDT on Oct 4, 2010

It has been predicted that the next great wars will be fought over water. We should really take better care of the water we have.

3:00AM PDT on Oct 4, 2010

let's hope the governments concerned implement what needs to be implemented soon and with prayers, i think the water problem---in fact, ANY PROBLEM, for that matter!---can be solved! on the other hand, the solutions to the problem of water supply and conservation should have been handed in way earlier. with prayers, we may still have hope.

4:06PM PDT on Oct 3, 2010

If we all start treat Mother Earth as it was it intented to betreated.Then a lot of problems will be solved.

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