# Desalination: Helping or Hurting Our Environment?

- Link: https://greenlivingguy.com/2016/07/desalination-helping-or-hurting-our-environment/
- Published: 2016-07-28T02:06:03-04:00
- Author: greenlivingguy

High cost and energy intensiveness remain the primary barriers for desalination.
So the  conversion of salt ocean water into fresh water. The prospect of providing
more drinking water to areas of need is appealing. All but experts usually weigh
the pros and cons of desalination. Especially hen deciding whether it’s a suitable
alternative. As such, it’s considered a final resort for providing fresh water.

# Ideal Sources

Ideally, sourcing water from lakes, rivers, streams. In addition other natural water
sources is the preferred method for drinking water. However global warming and general
pollution isn’t good. For they have made many former water sources become devoid
of water. In addition to growing populations in desert regions. For there’s an increasing
need for more fresh water. Especially then desalination can provide at a cost.

[⌊glg desalination⌉⌊glg desalination⌉[

### **Negative Impacts on Ocean Life**

Desalination contributes to the release of fossil fuels, as the process burns up
significantly more fossil fuels as opposed to sourcing from fresh water bodies. 
Desalination plants leave a hefty carbon footprint. Ocean biodiversity is also negatively
impacted by these plants. That’s as their intake pipes have a tendency to vacuum
and kill millions of fish larvae. In addition to plankton, fish eggs and other organisms
in the ocean. [Impacts in the food chain](https://education.seattlepi.com/happens-something-food-chain-goes-extinct-4656.html)
have a variety of negative outcomes. I mean so fossil fuels and these plants combine
for a gradually devastating effect.

### Additionally, salty sludge is the resulting leftover from desalination.

As is the case with any type of sludge, it has the ability to severely interrupt
marine ecosystems.

Jeffrey Graham of the Scripps Institute of Oceanography’s Center for Marine Biotechnology
and Biomedicine. For he states for every one gallon of freshwater produced from 
desalination. So we must dispose of a gallon of [doubly concentrated salt water](https://www.scientificamerican.com/article/the-impacts-of-relying-on-desalination/?redirect=1&error=cookies_not_supported&code=f7747406-864a-453b-b676-309e584da910).
All which likely plays a role in the disappearance of some marine organisms.

Specifically, desalinating water using reverse osmosis contributes to “noise pollution,
visual pollution, reduction in recreational fishing and swimming areas, emission
of materials into the atmosphere,” and the brine discharge contributing to pollution,
according to the [National Center for Biotechnology Information](https://www.ncbi.nlm.nih.gov/pubmed/17671660).
Marine life can be severely affected by the high density of brine discharge, as 
their impact on the food chain is great despite their size or ocean depth.

![Qatar_facility](https://i0.wp.com/greenlivingguy.com/wp-content/uploads/2016/07/
qatar_facility.jpg?resize=5000%2C3327&quality=52&ssl=1)

### **When a Last Resort Becomes Logical**

While the negative effects of desalination are clear, the potential of people dying
or becoming ill due to dehydration is difficult to ignore. As such, some view the
risks of losing human life as outweighing the environmental effects.

When you consider that [less than 1% of the world’s water supply is fresh](https://www.meco.com/why-meco/sustainability/),
and much of that is being compromised by overutilization, contamination and climatic
influences, there’s a pressing need for desalination in some places. At the very
least, the cost for desalination is beginning to decrease with the rise of desalination
plants, with around 300 of them in the USA.

In addition to lowering costs that should increase research going toward desalination,
there are new ways to combat the high energy intensity of desalination, with bio-
engineered energy solutions using the process of [
 forward osmosis
 to siphon clean
water from the intake.

New methods like these are using less than a quarter of the electricity required
for standard desalination, which shows potential for the process eventually becoming
less disruptive toward the environment. For now though, there are ample concerns
regarding the environment, including the high emission of fossil fuels and ecosystem
disturbances.

With the process not disappearing anytime soon, the environmentally minded can hope
for increased research into more efficient methods that provide the benefits of 
desalination without the carbon footprint and bio-system interference.