Desalination Explained

By Paddy Padmanathan
(Edited by Alison M.  Jones, NWNL Director)
Pictures and graphics provided by Paddy Padmanathan

Mr. Padmanathan, a professional civil engineer for over 35 years, is President and CEO of ACWA Power, a company that delivers desalinated water in 11 countries. His goal today is to promote localization of technology and industrialization of emerging economies.

NWNL:  While we can’t squeeze water out of thin air, we can squeeze potable water out of salt water. The high cost of desalination and ecosystem degradation by its brine waste are now being studied and corrected.  Thus, as our planet seeks more freshwater, NWNL asked this author, whom we recently met, to share his assessment of desalination and to describe recent adjustments to former desalination processes in this blog.

Picture5.pngShuqaiq 2 IWPP, RO desalination plant

Desalination’s Recent Global Development

Desalination is the process by which unpotable water such as seawater, brackish water and wastewater is purified into freshwater for human consumption and use. Desalination is no longer some far-fetched technology we will eventually need in a distant future to secure global water supply.

Desalination technology has been used for centuries, if not longer, largely as a means to convert seawater to drinking water aboard ships and carriers. Advances in the technology’s development in the last 40 years has allowed desalination to provide potable fresh water at large scale.

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Desalination Capacity (Source: Pacific Institute, The World’s Water, 2009)

In the Arabian Gulf, desalination plays a particularly crucial role in sustaining life and economy. Some countries in the Gulf rely on desalination to produce 90%, or more, of their drinking water.  The overall capacity in this region amounts to about 40% of the world’s desalinated water capacity. Much of this is in Kuwait, the United Arab Emirates, Saudi Arabia, Qatar and Bahrain. The remaining global capacity is mainly in North America, Europe, Asia and North Africa. Australia‘s capacity is also increasing substantially.

Global desalination capacity has increased dramatically since 1990 to a 2018 value of producing 105 million cubic meters of water daily (m3/day). Of this cumulative capacity, approximately 95 million m3/day is in use.

Picture2.pngQuadrupling of worldwide desalination capacity (1998-2018) continues.

Proponents and Critics of Desalination

Estimates indicate that by 2025, 1.8 billion people will live in regions with absolute water scarcity; and two-thirds of the world population could be under stress conditions. Desalinated water is possibly one of the only water resources not dependant on climate patterns. Desalination appears especially promising and suitable for dry coastal regions.

Proponents of desalination claim it creates jobs; stops dependence on long-distance water sources; and prevents local traditional water sources from being over-exploited.  It even supports development of energy industries, such as the oil and gas industries in the Middle East. As well, research and development are making desalination plants increasingly energy efficient and cost-effective.

It is valid that the environmental impacts of desalination plants include emission of large amounts of greenhouse gas emissions, because even with all the advances in technology to reduce energy intensity, desalination is still an energy-intensive process. While the industry continues to work on reducing energy intensity, the solution to reducing greenhouse gas emissions is to link desalination with renewable energy.

Energy is also the most expensive component of cost of produced water, contributing up to one-third to more than half of the cost. Renewable energy costs are now becoming competitive with fossil-fuel-generated energy in many locations where desalination is the only option available for providing potable water. As a result, more attention is turning towards de-carbonization of desalination.

Desalination also degrades marine environments through both its intake and discharge processes. After separating impurities from the water, the plant discharges the waste, known as brine, back into the sea. Because brine contains much higher concentrations of salt, it causes harm to surrounding marine habitats. Considerable attention and investment are going towards minimizing the damage with more appropriate design of intake and discharge facilities. In the case of discharge, temperature and salt concentrations are reduced though blending prior to discharge. Ensuring this discharge only at sufficient depths of sea water and spreading discharge across a very wide mixing zone will ensure sufficient and quick dilution.

Desalination Technologies

Main water sources for desalination are seawater and brackish water. Key elements of a desalination system are largely the same for both sources:

  1. Intake — getting water from its source to the processing facility;
  2. Pretreatment — removing suspended solids to prepare the water for further processing;
  3. Desalination — removing dissolved solids, primarily salts and other inorganic matter from a water source;
  4. Post-treatment — adding chemicals to desalinated water to prevent corrosion of downstream infrastructure pipes; and
  5. Concentrate management and freshwater storage — handling and disposing or reusing the waste from the desalination; and storing this new freshwater before it’s provided to consumers.

The majority of advancements in technology has happened at Stage 3, the desalination process itself.

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The 5 Stages of Desalination (with Stage 3 details in the blue circle) .

There are two main categories of desalination methods: thermal (or distillation) and membrane. Until 1998, most desalination plants used the thermal process. Thereafter, the reverse osmosis (RO) desalination process via a membrane-based filtration method took hold.  As more and more technological advancements were developed, the number of plants using membrane technology surpassed that of thermal. As of 2008, membrane processes accounted for 55% of desalination capacity worldwide, while thermal processes accounted for only 45%.

Thermal Methods

There are three thermal processes; multistage flash (MSF), multiple effect distillation (MED), and mechanical vapor compression (MVC), which all use the same basic principle of applying heat to create water vapor. The vapor then condenses into pure water, while separating it from most of the salts and impurities.  All three thermal processes use and reuse the energy required to evaporate water.

Thermal distillation was the earliest method used in the Middle East to commercially desalinate seawater for several reasons:

  1. The very saline and hot Arabian Gulf and Red Sea periodically have high concentrations of organics. Until recent advances in pre-treatment technologies, these organics presented challenging conditions for RO desalination technology.
  2. Only in recent times, with advances in membrane science, have RO plants been reliably utilized for the large production capacities required in this region.
  3. Dual-purpose, co-generation facilities in the Middle East combine water production with electric power to take advantage of shared intake and discharge structures.This usually improves energy efficiencies by 10% to 15% as thermal desalination processes utilize low-temperature waste steam from power-generation turbines.

In the past, these three reasons, combined with highly-subsidized costs of energy available in the Middle East, made thermal processes the dominant desalination technology in this region.  Amongst the three thermal processes, MSF is the most robust and is capable of very large production capacities. The number of stages used in the MSF process directly relate to how efficiently the system will use and reuse the heat that it is provided.

Picture4.pngShuaibah 3 IWPP:  An MSF [thermal] desalination plant.

Membrane Methods

Commercially-available membrane processes include Reverse Osmosis (RO), nanofiltration (NF), electrodialysis (ED) and electrodialysis reversal (EDR). Typically, 35-45% of seawater fed into a membrane process is recovered as product water. For brackish water desalination, water recovery can range from 50% to 90%.

Reverse Osmosis (RO), as the name implies, is the opposite of what happens in osmosis. A pressure greater than osmotic pressure is applied to saline water.  This causes freshwater to flow through the membrane while holding back the solutes, or salts. The water that comes out of this process is so pure that they add back salts and minerals to make it taste like drinking water.

Today, the Reverse Osmosis (RO) process uses significantly less energy than thermal distillation processes due to advances in membranes and energy-recovery devices. Thus, RO is the more environmentally-sustainable solution; and it has reduced overall desalination costs over the past decade.

Picture6.pngShuaibah Expansion IWP, RO membrane racks & energy recovery, RO desalination plant

Desalination Technology Today: Comparisons and Areas for Improvements

While all the desalination technologies in use today are generally more efficient and reliable than before, the cost and energy requirements are still high. Ongoing research efforts are aimed at reducing cost (by powering plants with less-expensive energy sources, such as low-grade heat) and overcoming operational limits of a process (by increasing energy efficiency).

Since the current technologies are relatively mature, improvements will be incremental. Emerging technologies such as Forward Osmosis or Membrane Distillation will further reduce electric power consumption and will use solar heat. To approach the maximum benefit of desalination, it will take disruptive technologies such Graphene membranes. They are in very early stage of development.  Ultimately, no desalination process can overcome its thermodynamic limits. However, desalination is a valuable contribution to today’s increasing needs for fresh water supplies.

Glossaries: A Tool for Understanding

Written by NWNL Intern Lucy Briody
Edited by Alison M Jones, NWNL Director

No Water No Life Summer 2018 Intern Lucy Briody is a sophomore at Colgate University where she is majoring in Environmental Geography and minoring in English and Women’s Studies. Part of her work this summer has been dedicated to creating an updated and relevant glossary for the new NWNL website, launching later this summer.

Note from NWNL Director Alison M Jones: The NWNL Glossary of Watershed Terms, which Lucy helped edit this summer, will appear on our new NWNL website this fall.  Stay tuned. Meanwhile, this week the esteemed Lapham’s Quarterly serendipitously posted a more literary “Glossary: Water / From acre-foot to water birth, the language of water by their Senior Editor Leopold Froehlich.  Here’s to the myriad of glossaries we can peruse and use!

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If you’ve ever been lost in a foreign country, signed a contract or tried to explain to parent or grandparent how to use an iPhone, then you understand how important a common language is in promoting comprehension, getting work done or efficiently making a birthday post on Facebook. In the scientific world, a common language is perhaps even more crucial. Scientists use very exact terms to specify and categorize; however such terms can confuse the average layman. For example, while the Latin name of species can seem obtuse to the layman, for those versed in scientists’ use of binomial nomenclature, the Latin name provides insight into the family, genus and species to which they belong.

The glossary is part of the path to understanding. It is not necessarily a complete guide, but rather serves as a tool. In order to use this tool most effectively when confronted with a complex subject, a reader should begin to get a feel for the concept through lay articles intended for the average reader rather than a scientific audience. Once a basic understanding has been reached, the glossary can help the individual more easily comprehend scientific articles that would have been far too complex without an explanation of unfamiliar terminology. Glossaries simplify important terms, critical to comprehension of many materials, by providing easily understandable definitions.

During my summer internship with No Water No Life, it was clear that watersheds have tremendous impacts on the lives and livelihoods of those who live and work in them. It is important to clearly communicate with watershed “stakeholders” the impacts and consequences of both natural and man-made processes happening around them. My job at NWNL was to complete and augment the project’s draft of a Watershed Glossary. I quickly understood that clarity and comprehension are critical to raising awareness actions needed to keep our ecosystems healthy in today’s rapidly changing world.

If environmental  jargon and terms describing the quality and availability of our freshwater supplies are not able to be clarified with tools such as a glossary, it limits the likelihood of watershed residents participation. To underline that, below is the definition of “citizen science” that I contributed to the NWNL glossary.

Citizen Science provides valuable support to many fields of data-driven exploration and research. The participation and contributions of non-scientists and amateur scientists from the public helps in collecting data and performing experiments, which may be simple but demand  a rigorous and objective commitment. Citizen scientists often contribute a tacit understanding and valuable local knowledge. As well, their involvement and gained knowledge helps bridge the gap between hard-core science and local people and cultures. Thus, citizen science – whether that of individuals, teams or networks – often raises levels of interest, knowledge and commitment of others. An example of citizen science documented by NWNL is the Louisiana Bucket Brigade in New Orleans, which encourages citizens to collect their own data regarding air quality.

Jones_100522_NJ_1027Citizen scientists, including Lauren Theis from the Upper Raritan Watershed Association, during stream water monitoring training. 

Interestingly, both citizen science and glossaries are tools that help counterbalance the possibility of science or other erudite subjects appearing exclusionary and limited to those with limited experience. Citizen science and glossaries are each key to bridging such gaps and promoting greater public involvement in issues that affect us all.

As the modern world changes at a rapid pace, many new technical and conversational terms are added to our vocabulary.  Many formerly common words are used less frequently, and are thus less understood. For over 2,000 years, glossaries have been a critical tool to helping civilizations face increasing pressure to be informed and knowledgeable about all that is going on around us – no matter how complex. Glossaries help each of us achieve a broader perspective.  Glossaries are critical to ensuring that scientific knowledge gained in the past can continue to be used to make the world around us a better place for all.

Jones_100522_NJ_0884.jpgCitizen scientists during the Upper Raritan Watershed Association stream water monitoring training. 

 

Photos © Alison M. Jones.

Stewardship Means All Hands on Board

As I was going through our photo archive for another project, I noticed a repetition of hands in pictures of volunteers, scientists, interviewees and other river stewards that NWNL Director Alison Jones has photographed. Whether they’re using their hands while talking, or doing physical work, river stewards know that stewardship means “all hands on board” for our freshwater resources!

Jones_070612_BC_2762Deana Machin of Okanagan Nations Alliance, British Columbia, Columbia River Basin

Jones_080207_ET_8440Scientist Fickre Assefa,  Abra Minch University, Ethiopia

Jones_160210_K_9606Elijah and Lydiah Kimemia, farmers working with KickStart in Kenya’s Rift Valley, Mara River Basin

Jones_090425_NJ_0614Bob Spiegel, Executive Director of Edison Wetlands Association, New Jersey, Raritan River Basin

Jones_070707_WA_6746Ray Gardner, Former Leader of Chinook Nation, Washington State, Columbia River Basin

Jones_090928_K_0097Amanda Subalusky and Chris Dutton, measuring water flows for GLOWS, Kenya, Mara River Basin

Jones_160211_K_0006Grace Mindu, farmer working with KickStart in Kenya’s Rift Valley, Mara River Basin

Jones_100522_NJ_1067Volunteer Kyle Hartman with Raritan Headwaters Association, New Jersey, Raritan River Basin

Jones_111026_LA_0044Dean Wilson, Atchafalaya Basinkeeper, Louisiana, Mississippi River Basin

K-P-M-1701.tifMaasai morans’ hand shake, Amboseli, Kenya

 

All photos © Alison M. Jones.

What is a Bio Blitz? A Strategy for Stewardship

By Kevin FitzPatrick,
Conservation Photographer, iLCP Senior Fellow

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Bio Blitz: a short, intense team effort to discover as many different life forms as possible in one location; shorter-duration, smaller-scaled versions of All-Taxa Biodiversity Inventories (ATBIs) [See Glossary below article.]

A Bio Blitz compasses all that I want to communicate to my audience about conservation and biodiversity, and it’s a wonderful way to communicate with students and adults about science. It offers young people a chance to try their hand at identifying species, photography, sketching wildlife, writing about nature or discovering the natural history of their own area. No two Bio Blitzes are the same, as each one is a reflection of the local environment. It is an opportunity for youth to enhance their appreciation of the environment through photography, art and exploration, and to engage in true “citizen science.”

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With the iNaturalist Mobile Application, the Encyclopedia of Life’s Species Collections allows participants to document species and upload observations to a collective map available freely online. Bio Blitzes connect photographers with scientists who help them find species. This experience gives photographers the ability to expand the range of species in their files.

So many of us only focus on mega-fauna and common species, forgetting the big picture (or maybe the little picture). I am talking about butterflies, beetles, insects of all sorts, frogs, salamanders, snakes and, yes, slime molds! As the BioBlitz Concept begins to takeoff around the country, there’ll be a greater need for these kinds of images. Over 100 parks and refuges around the country now promoting Bio Blitzes, so you can likely take advantage of this great opportunity in your area.

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I have shot over 115 Bio Blitzes from Maine to California with the approach of a conservation photographer. My purpose is to shoot a way that people can see the species present with all their beautiful, close-up detail and color. When this happens, perceptions change and these species take on a new life in the minds of the viewer. They are seen as an asset and part of their world! Thus, Bio Blitz is much more than just a concerted effort to identify the species that live in chosen location. It is a celebration of nature and the many wonderful forms that exist in any given place. When people of all ages and professions come together to take a closer look at their local wildlife, a tangible excitement builds.

Bio Blitzes are powerful tools for environmental education, conservation and community engagement, representing experiential learning at its best. Bio Blitzes images highlight species diversity and offer positive experiences within local ecosystems. When conservation integrates art and science, it merges different but valid ways of perceiving and experiencing the world.  Merging means of direct participation in Bio Blitzes may challenge or blur the artificial boundaries marked by our training.  But what biologist isn’t stirred by theprofound, and what artist doesn’t sense geometry in mystery?

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At our core we are humans. The head and the heart are inseparable.  And so, a compelling story about conservation interprets the intersection of human history, emergence of an ecological conscience, and biological integrity.  A Bio Blitz is an opportunity to experience that intersection directly.

I have worked with a larger-scale, longer-duration ATBI [All Taxa Biodiversity Inventory] in the Smokies since it started almost 20 years ago. We have found over 1,000 new species. While in-depth, scientific ATBI’s are now starting up all across the country, the benefit of Bio Blitzes is that they are all-inclusive. Any one gets to go and play a part. Kids, parents, and grandparents – you name it!

I have worked with scientists for years and know how most people see them. To counter those preconceptions, Bio Blitzes allows people to work hand and hand with scientists in the field while in your element! Participants see how engaging, passionate and fun they are to be with. Also many younger scientists are excited to see the general public get in involved in science. I have worked with National Geographic on Bio Blitzes at Saguaro National Park, Rocky Mountain National Park, Jean Lafitte National Historical & Preserve, Golden Gate National Park, and The Mall in Washington, DC. At each one, the public was totally engaged and had over1000 kids attending!

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GLOSSARY [“From ATBI to Bio Blitz”]

ATBI: an intense inventory of all taxa to the species level to the degree possible in a single site, followed by on-going further inventory as needed by specific taxa and in-depth basic and applied biodiversity research and development (Janzen and Hallwachs 1994).

Bio Blitz: part rapid biological survey and part public outreach event bringing together scientists and volunteers to compile a snapshot of biodiversity in a relatively short amount of time (Karns et al. 2006; Lundmark 2003). It is not intended to be an exhaustive inventory, but can contribute to a more comprehensive ATBI effort in the future.

Biodiversity. The variety of living organisms considered at all levels of organization, including the genetic, species, and higher taxonomic levels, and the variety of habitats and ecosystems,as well as the processes occurring therein (Meffe and Carroll 1997).

Citizen science. Citizen science refers to participation of the general public as field assistants in scientific studies (Cohn 2008; Irwin 1995). Volunteers may have no specific scientific training,and typically perform, or manage, tasks such as observation, measurement, or computation.

Inventory. Natural resource inventories are extensive point-in-time surveys to determine the location or condition of a resource, including the presence, class, distribution, and status of biological resources such as plants and animals. Inventories are designed to contribute to our knowledge of the condition of park resources and establish baseline information for subsequent monitoring activities (NPS 2008).

All photos provided by Kevin FitzPatrick.

Dr. Alan Rice Reviews “The Waste Water Gardener”, by Dr. Mark Nelson

 

Reviewer’s Bio: Dr Alan Rice, (Doctor of Engineering Science) has conducted research in a number of fields, directing attention to environmental issues. He draws on experience from extensive global travel, having spent significant time in many countries.  

Information about Dr. Mark Nelson’s “The Waste Water Gardener”

NWNL Director’s Note: As one of 8 pioneers with Biosphere 2, Nelson saw that proper re-use of human waste could meet many goals needed for the survival of humans and watershed ecosystems. Having tasted “black water,” recycled from raw sewage, I can say it is great! So let’s get over the Yuck Factor.  

 

I pray this book is followed up with a text for civil/environmental engineering courses offered globally, and also made available on the web. Two decades ago, drought-besieged Texas towns had to resort to raw sewage to reclaim drinking water. From ancient times, so-called “more primitive” cultures recognized the importance of returning to the earth (in the form of fertilizer) that which we take from it. This is the theme embedded in Nelson’s book. And, incidentally money may be made with it!

 

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Most modern practices deplete the soils of their nutrients, leaving them barren. However, with 10% of its land arable, China has supported great populations by recycling “night soil,” a euphemism for human feces. Nelson also espouses recycling human feces. Which brings us to one of the charms of Dr. Nelson’s book. He doesn’t call it ‘feces’. He drops us into the ‘shit’ immediately. He calls a shit a shit and doesn’t try to hide the stuff under sobriquets as “B.M.” or “number two.”

The fastidious pretenses of many North Americans who’ve turned up their noses to recycling shit, squelched Chicago’s early hopes of providing clean, usable fertilizer from their own sewage treatment plants. Perhaps that “noses-up” is a holdover from the 1894 horse manure crisis in New York City. The city was “saved” with the advent of the horseless carriage, which brought with it more deadly pollutants. In any event, in a scholarly flair for his subject, Nelson employs the Anglo-Saxon descriptor deeply embedded in the English language since 500 BCE – and very likely long before: shit. This usage gives a playful and amusing lilt to the book, lightening the somber nature of the material it addresses.

US agriculture prefers guano instead to replace lost nutrients. Guano? Bird shit is held in higher esteem than people poop? But instead of either, the US replaces nutrients with manufactured phosphates, their excess being carried off to foul the seas and polluting every tributary along the way.

MA-MON-101Outhouse in Montague, Massachusettes (2000)

 

Nelson’s tome brings ashore the mission of the Hudson River sloop Clearwater, which set out to clear “The North River” of swarming populations of “Hudson River brown trout” (another euphemism) that spawned in the upper reaches of Manhattan’s sewers to debouch into the river – raw and untreated – at the 125th Street outfall. That mission was successful. We can now swim the lower Hudson.

Nelson’s manual guides the way to similar success on land. On the Clearwater I encountered my second “composting toilet.” Its odorless contents didn’t go into the Hudson, but to organic farming elsewhere. My first encounter with something similar was on a Wyoming ranch that ran buffalo. There, the urine, sterile when first leaving the body, goes into one container. The feces – oops, the shit – goes into the other, which provides even more beneficial results. No water is wasted either way, as these commodes are not flushed. That avoids the extremes forced upon Texas towns. In some places, water is now more expensive than whiskey.

Jones_130128_K_3688Outhouse in Kangatosa on Lake Turkana in Kenya (2013)

 

The innovative, pioneering spirit that typified the US in earlier years has moved offshore. Composting toilets are the new fashion in India where Indian Railways are retrofitting 43,000 coaches with them. The “proceeds” go to organic gardens. A number of so-called “Third World” countries are taking similar approaches: Burkina Faso, Georgia, The Philippines, Haiti, Cambodia, Rwanda…. It’s a long list.

Nelson offers engineering solutions for whole village programs, hotels, recreation areas – this list is long also. Their sewage – AKA, “effluent” – is released into an outside garden to be taken up by fruit trees, vegetables and flowers, which absorb that sewage. Giving back in return! What flows forth from the discharge end of the garden is clear, clean, safe water!

If sainthoods were given for saving the planet, Dr. Nelson’s canonization would be assured. I do hope one day to see luxuriant front lawns (waste water gardens need not be that big!), signaling the abandonment of sewer lines and transport of dangerous chlorine to expensive treatment centers. Interesting that the US never adopted the solution employed elsewhere: treat the water with ozone generated on site. Far cheaper, far safer.

Jones_110913_WA_2887-2At the WET Museum in Olympia, Washington (2011)

 

All photos © Alison M. Jones.

Drought: A Photo Essay

From 2014 until the beginning of 2017  California suffered through a major drought. It was a hot topic in the news, and NWNL conducted five Spotlight Expeditions to document and bring attention to that drought and its significance.  But what exactly is a drought? What causes droughts?  What are the effects of droughts? What does a drought look like?

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Boat launch, Kinbasket Lake Reservoir, BC, Canada. 2007

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Kinbasket Lake Reservoir, BC, Canada. 2007

Basicplanet.com defines a drought as a “lengthy period of time, stretching months or even years in which time land has a decrease in water supply.” Droughts usually occur when rain doesn’t fall often enough during prolonged periods of warmer temperatures, causing high pressure winds and and reduced water content.

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Aerial  of dry river bed, Skeleton Coast National Park, Namibia. 2006

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El Molo Swamp in Mau Forest during Kenya drought of 2009

Human activity can also be the cause of drought. Deforestation, farming, excess irrigation and erosion can lead to drought. Climate change also creates drought. Rises in average global temperatures greatly effect the possibility of drought, by reducing water content in the air.

Jones_150813_CA_4202Rio Hondo River, a tributary of Los Angeles River, California. 2015

Jones_140207_CA_9687Dried up succulent in the Santa Ynez Valley, California. 2014

There are many more affects of drought than most people realize. The most obvious affect is the shortage of water. Because of this, crops and animals will die. Droughts lead to malnutrition, dehydration and deadly famines. Wildfires and dust storms are much more probable and common effects. Industries that rely on water are forced to cutback, thus forcing people into unemployment. Wars have occurred due to droughts.

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USA: California, Kettleman City, sign about effects of drought and no waterSigns posted during the California Drought,  2014 – 2016.

 

Posted by Sarah Kearns, NWNL Project Manager.

All photos © Alison M. Jones.

Art as Activism to Save Our Rivers

“Water meanders in and out of every discipline, so we can never have too many poets, hydrologists, urban planners, biologists, lawyers, writers, physicians, NGO’s, or geologists working to amplify and aid water’s voice”, says artist Basia Irland.
In Irland’s Receding / Reseeding series, river water is frozen, carved into the form of a book, which is embedded with a “riparian text” consisting of local native seeds, and placed back into the stream. The seeds are released as the ice melts in the current. Ireland consults with river restoration biologists and botanists to determine the best seeds for each unique riparian zone. She launches these ice books into rivers all over the world, documenting the process and inviting local communities to be a part of this ceremonial process. Check out Irland’s website to attend events and follow the progress of her important and inspirational work.

Read more about her on National Geographic’s Water Currents Blog.

– Posted by Jasmine Graf, NWNL Associate Director