New NASA data show how the world is running out of water

The world’s largest underground aquifers – a source of fresh water for hundreds of millions of people — are being depleted at alarming rates, according to new NASA satellite data that provides the most detailed picture yet of vital water reserves hidden under the Earth’s surface.

Twenty-one of the world’s 37 largest aquifers — in locations from India and China to the United States and France — have passed their sustainability tipping points, meaning more water was removed than replaced during the decade-long study period, researchers announced Tuesday. Thirteen aquifers declined at rates that put them into the most troubled category. The researchers said this indicated a long-term problem that’s likely to worsen as reliance on aquifers grows.

Scientists had long suspected that humans were taxing the world’s underground water supply, but the NASA data was the first detailed assessment to demonstrate that major aquifers were indeed struggling to keep pace with demands from agriculture, growing populations, and industries such as mining.

“The situation is quite critical,” said Jay Famiglietti, senior water scientist at NASA’s Jet Propulsion Laboratory in California and principal investigator of the University of California Irvine-led studies.

Underground aquifers supply 35 percent of the water used by humans worldwide. Demand is even greater in times of drought. Rain-starved California is currently tapping aquifers for 60 percent of its water use as its rivers and above-ground reservoirs dry up, a steep increase from the usual 40 percent. Some expect water from aquifers will account for virtually every drop of the state’s fresh water supply by year end

The aquifers under the most stress are in poor, densely populated regions, such as northwest India, Pakistan and North Africa, where alternatives are limited and water shortages could quickly lead to instability.

The researchers used NASA’s GRACE satellites to take precise measurements of the world’s groundwater aquifers. The satellites detected subtle changes in the Earth’s gravitational pull, noting where the heavier weight of water exerted a greater pull on the orbiting spacecraft. Slight changes in aquifer water levels were charted over a decade, from 2003 to 2013.

“This has really been our first chance to see how these large reservoirs change over time,” said Gordon Grant, a research hydrologist at Oregon State University, who was not involved in the studies.

But the NASA satellites could not measure the total capacity of the aquifers. The size of these tucked-away water supplies remains something of a mystery. Still, the satellite data indicated that some aquifers may be much smaller than previously believed, and most estimates of aquifer reserves have “uncertainty ranges across orders of magnitude,” according to the research.

Aquifers can take thousands of years to fill up and only slowly recharge with water from snowmelt and rains. Now, as drilling for water has taken off across the globe, the hidden water reservoirs are being stressed.

“The water table is dropping all over the world,” Famiglietti said. “There’s not an infinite supply of water.”

The health of the world’s aquifers varied widely, mostly dependent on how they were used. In Australia, for example, the Canning Basin in the country’s western end had the third-highest rate of depletion in the world. But the Great Artesian Basin to the east was among the healthiest.

The difference, the studies found, is likely attributable to heavy gold and iron ore mining and oil and gas exploration near the Canning Basin. Those are water-intensive activities.

The world’s most stressed aquifer — defined as suffering rapid depletion with little or no sign of recharging — was the Arabian Aquifer, a water source used by more than 60 million people. That was followed by the Indus Basin in India and Pakistan, then the Murzuk-Djado Basin in Libya and Niger.

California’s Central Valley Aquifer was the most troubled in the United States. It is being drained to irrigate farm fields, where drought has led to an explosion in the number of water wells being drilled. California only last year passed its first extensive groundwater regulations. But the new law could take two decades to take full effect.

Also running a negative balance was the Atlantic and Gulf Coastal Plains Aquifer, which stretches across the southeast coast and Florida. But three other aquifers in the middle of the country appeared to be in relatively good shape.

Some groundwater filters back down to aquifers, such as with field irrigation. But most of it is lost to evaporation or ends up being deposited in oceans, making it harder to use. A 2012 study by Japanese researchers attributed up to 40 percent of the observed sea-level rise in recent decades to groundwater that had been pumped out, used by humans and ended up in the ocean.

Famiglietti said problems with groundwater are exacerbated by global warming, which has caused the regions closest to the equator to get drier and more extreme latitudes to experience wetter and heavier rains. A self-reinforcing cycle begins. People living in mid-range latitudes not only pump more water from aquifers to contend with drier conditions, but that water — once removed from the ground — also then evaporates and gets recirculated to areas far north and south.

The studies were published Tuesday in the Water Resources Research journal.

Famiglietti said he hoped the findings would spur discussion and further research into how much groundwater is left.

“We need to get our heads together on how we manage groundwater,” he said, “because we’re running out of it.” More

 

 

©

Groundwater from aquifers important factor in food security

Thirsty cities, fields and livestock drink deeply from aquifers, natural sources of groundwater. But a study of three of the most-tapped aquifers in the United States shows that overdrawing from these resources could lead to difficult choices affecting not only domestic food security but also international markets.

University of Illinois professors of civil and environmental engineering Ximing Cai and Megan Konar, along with graduate student Landon Marston and Lehigh University professor Tara Troy, studied groundwater consumption from three main systems. Reliance on these aquifers intensified so much from 2000 to 2008 that it accounted for 93 percent of groundwater depletion in the U.S. They published their findings in the Proceedings of the National Academy of Sciences.

The U.S. Geological Survey identifies the Central Valley aquifer in California, the High Plains aquifer in the Great Plains states, and the Mississippi Embayment aquifer in the lower Midwest as being managed unsustainably, which means that is being extracted from the aquifer faster than it is replenishing.

"Deep groundwater is like natural gas. If you use it, it takes a while to recharge," Cai said. "Unsustainable usage means the water table is lowered, which makes it more difficult and more expensive to pump water since we have to keep going deeper. It also affects ecosystems associated with the water table, such as streams and wetlands."

The researchers tracked water consumption from the aquifers to see where the water was going, both in terms of geography and usage. For example, when water was used to irrigate a crop, the researchers tracked where those crops were shipped.

"When we think of water, we think of direct water, the water that comes out of our faucets. But we actually use a lot of embodied water in our everyday lives – the water footprint to produce a product," Konar said. "We looked at the water implicitly being transferred between states and countries in the products."

The researchers found that the vast majority – 91 percent – of embodied groundwater from these three aquifers stayed within the U.S. The remaining 9 percent was exported internationally. They identified the states most heavily reliant on each aquifer, and the breakdown of what was produced using water from each aquifer. For example, the largest percentage of water from the High Plains aquifer irrigated grains, while the largest contribution from the Central Valley aquifer in California went to producing meat. See the infographic for the detailed findings.

The researchers hope that having detailed information on how aquifer water is used, and the complex economic and environmental implications of that use, can help policy makers in their decisions about water resource management.

"The issue here is the tradeoffs. That's the difficulty for the decision makers," Cai said. "There is a tradeoff between the environment and economic profit, and there is a trade-off between the current use and future use. The environment is affected, the food markets are affected, the resources for fisheries are affected. That helps the decision makers understand the issue. I think this information is also important for the public to understand the issue."

The researchers feel that the study is also important for international leaders, as any decisions will affect global food production and prices. Although the international exports represented a small percent of the overall water consumption, the exported goods account for a large market share in the countries that import them, the study found.

Next, the researchers plan to study major watersheds in the U.S. to gain a more comprehensive picture of natural water resources in the United States. They are interested in detailing water use under variable conditions, both in terms of economic and environmental impact.

"Managing water resources for the future is especially important because future rainfall patterns are going to be more variable, with more droughts predicted," Konar said. "As we're seeing in California, they were really lucky to have aquifers to rely on during a drought. We don't want to deplete these aquifer supplies, so that when we get into these drought situations, we have some emergency backup." More

More information: "Virtual groundwater transfers from overexploited aquifers in the United States" PNAS 2015 ; published ahead of print June 29, 2015, DOI: 10.1073/pnas.1500457112

 

©

Jamaican's Cautioned Against False Sense Of Water Security

THE RAINS have returned, bringing with them relief from drought conditions that plagued the island during the summer, but Jamaicans must guard against a false sense of water security.

Hope River in dry season

So says Director of the Climate Studies Group Mona Dr Michael Taylor, who is supported in his caution by Herbert Thomas, deputy managing director of the Water Resources Authority.

Taylor, a physicist, urges Jamaicans to be mindful not only of the El Niño phenomenon that promises a return to the dry spell towards the end of this year and into next year. They need, too, he warned, to be cognisant of climate change, which will see the island experiencing longer and more severe dry spells over the long term, as well as flooding incidents.

"As El Niño peaks, we might revert to dry conditions somewhere between the end of the year and early next year, but as it declines, we are susceptible to the reverse, which is flooding, when the early rainfall season kicks in," he said.

"So the point is, we have to figure out how to be resilient to these swings in extremes from drought to flood within the course of a year, and these kinds of swings will become more and more the norm under climate change," the scientist posited.

This is borne out by research done over the last two to three years by the Climate Studies Group for the Planning Institute of Jamaica.

That research, Taylor said, looks at climate scenarios up to 2040, with a focus on projections for temperature and rainfall.

"The temperature will continue increasing about one degree up to 2040, and that is further from where we are now. We have warmed by about one degree over the last 50 years. What that really translates into is, the number of really hot days is increasing every year and the number of really hot nights is also increasing and will continue to increase," he said.

"Rainfall will continue with this form of variability, which is a yearly swing between drought and flood conditions, but by 2040 will show the beginning of an overall long-term drying trend. This means that, from 2040 onward, even though we will get rain, we will get less overall rain," added Taylor.

The solution, he said, is a comprehensive look at water security, something Government is attempting to tackle, with work ongoing on a new water policy that takes account of climate impacts.

"We need to be concerned about water capture, water storage, water access, conservation, efficiency, and using science to help us to better plan for these kinds of extreme variations," the head of the physics department at the University of the West Indies said.

Thomas agreed, noting that the island's long-term water security will depend on a comprehensive plan, informed by the new water policy now nearing completion, and with both private citizens and Government working in concert.

"Some people like to stand under the shower and sing. Cutting out things like those [is important]; you would be surprised to know the amount of water you waste that way," he told The Gleaner recently.

Retrofitting for conservation

In addition, Thomas said Jamaicans might have to look at retrofitting their homes and offices to include features such as low-flush toilets and faucets that use less water for showers. This, while the island looks at alternative energy sources in order to reduce the overall cost of getting water to the areas where it is needed.

Checks with communications manager at the National Water Commission, Charles Buchanan, revealed that current electricity cost for water stands at some of $500 million monthly.

Beyond that, Thomas said there is the need to look at rainwater harvesting and the comprehensive use of wastewater, to which the water policy also gives attention.

"For example, the treated sewage out at Soapberry, there is the thinking that some of the water could be used in St Catherine areas for agriculture and, therefore, the water normally used for agriculture could be freed up for domestic use in Kingston," he noted.

"And there are other things ... . You might have to consider a double-plumbing system so you separate grey water (water from bathroom sinks, tubs and washing machines, etc) from black water. Grey water you can use to flush toilets and water lawns," Thomas added. More

 

© 2014

“Containing the Resource Crisis”

LONDON – The proclamation of a new Cold War, following Russia’s annexation of Crimea, turned out to be alarmist and premature. However, it reflected the anxiety of today’s decision-makers in the face of a crumbling global order.

With emerging economies far from committed to established norms in international relations, many governments and multinational companies are feeling vulnerable about relying on others for vital resources – the European Union’s dependence on Russian gas being a case in point.

Competition for scarce resources is sorely testing our assumptions about global governance and cooperation, at a time when collective leadership is becoming ever more necessary. But even in the absence of overarching global legal frameworks, it is possible to maintain a sense of common security if the terms of resource investments are founded on long-term political understanding and commercial relationships, rather than short-term competition.

The stakes are high. Resource scarcity is closely linked to political risks. Consider, for example, the drought that decimated Russia’s 2010 wheat harvest. In response, Russia imposed export restrictions to shore up its domestic supplies, sending food prices soaring in its main export markets, especially Egypt. This in turn helped spark the political uprisings that spread rapidly across North Africa and the Middle East. Climate change is expected to trigger many more such chains of events.

One test case for such cooperation is the potentially explosive issue of the Nile Delta’s water resources. Britain’s colonial-era treaty has, since 1929, given Egypt a veto over any upstream river project that might affect the country’s water supply

One test case for such cooperation is the potentially explosive issue of the Nile Delta’s water resources. Britain’s colonial-era treaty has, since 1929, given Egypt a veto over any upstream river project that might affect the country’s water supply. Several Nile Basin countries, including Sudan and Ethiopia, have now ratified a new, Nile River Basin Cooperative Framework agreement, which Egypt has yet to sign. Given Egypt’s concerns about potential water shortages arising from Ethiopia’s new upstream hydropower plants, its assent is far from assured.

Indeed, in Egypt’s febrile political atmosphere, its newly elected president, General Abdul Fattah el-Sisi, may be tempted to escalate the threat of military action in response to Ethiopia’s hydropower projects. Such a move would send shockwaves through a region already reeling from conflict in South Sudan, Syria, Iraq, and Lebanon.

To avoid another dangerous political-environmental chain reaction, nudging all sides toward agreement will require achieving mutual recognition of resource concerns. Ethiopia must credibly guarantee the supply of water downstream, for example, by establishing a water-replenishment rate at its dam reservoirs that does not threaten the onward flow of water to Egypt. At the same time, Egypt, while retaining the fundamental right to protect its water supply, must recognize the interests of its upstream neighbors and be ready to negotiate in good faith a new Nile Basin treaty.

Multinational companies and sovereign investors like China, which have financed hydropower projects upstream, will come under increasing pressure to adopt a position. They, too, can play a positive role by considering the cross-border investments that will address critical interdependencies, like Egypt’s wasteful agricultural irrigation practices.

Similar resource-related tensions are surfacing in other parts of the world. Water stress and food security threaten to constrain India’s economic promise, as increasing coal-powered electricity generation diverts water resources away from agriculture. The political risks of investing in Nigeria’s agriculture sector are also rising as a result of the country’s demographic explosion, high inflation, weak rule of law, and insecure land rights, with wider political consequences.

These resource strains are aggravated by foreign investments that seek to meet developed-country consumers’ voracious demand for resources without attention to their impact on sustainability in the host countries. This virtual outsourcing of the industrialized world’s environmental impacts, apart from being hypocritical, is no basis for building a strategy for global environmental sustainability.

Instead, the world needs to invest in sustainable agriculture, renewable energy, and green infrastructure. To be sure, the most promising efforts by leading multinationals today must confront entrenched subsidies and vested political interests. Unless the necessary policy frameworks are put in place green investment initiatives will continue to struggle to achieve a meaningful scale. Moreover, developed and developing countries seem unable even to agree on a fair division of environmental responsibilities, even though they have become increasingly interdependent in trade, investment, and the supply of natural resources.

These difficulties should not stop us from trying. The Earth Security Initiative is working with the BMW Foundation to develop global roundtables on resource security over a two-year period, starting in Hangzhou, China, on July 17- 20. These high-level, informal meetings will bring together leaders from politics, business, and civil society in Europe and emerging economies in an effort to bridge just such differences.

We know what needs to be done, why it is important, and who must be involved to secure our planet’s long-term future. We must now address the equally vital question of how this will be achieved.

Read more at http://www.project-syndicate.org/commentary/alejandro-litovsky-addresses-the-increasingly-close-links-between-resource-scarcity-and-political-risk#qFDfi1xP668YyhLg.99

 

 

© 2014

'There Will Be No Water' by 2040? Researchers Urge Global Energy Paradigm Shift

The world risks an "insurmountable" water crisis by 2040 without an immediate and significant overhaul of energy consumption and demand, a research team reported on Wednesday.

"There will be no water by 2040 if we keep doing what we're doing today," said Professor Benjamin Sovacool of Denmark's Aarhus University, who co-authored two reports on the world's rapidly decreasing sources of freshwater.

Many troubling global trends could worsen these baseline projected shortages. According to the report, water resources around the world are "increasingly strained by economic development, population growth, and climate change." The World Resources Institute estimates that in India, "water demand will outstrip supply by as much as 50 percent by 2030, a situation worsened further by the country's likely decline of available freshwater due to climate change," the report states. "[P]ower demand could more than double in northern China, more than triple in India, and increase by almost three-quarters in Texas."

"If we keep doing business as usual, we are facing an insurmountable water shortage — even if water was free, because it's not a matter of the price," Sovacool said. "There's no time to waste. We need to act now."

In addition to an expanding global population, economic development, and an increasing demand for energy, the report also finds that the generation of electricity is one of the biggest sources of water consumption throughout the world, using up more water than even the agricultural industry. Unlike less water-intensive alternative sources of energy like wind and solar systems, fossil fuel-powered and nuclear plants need enormous and continued water inputs to function, both for fueling thermal generators and cooling cycles.

The reports, Capturing Synergies Between Water Conservation and Carbon Dioxide Emissions in the Power Sectorand A Clash of Competing Necessities: Water Adequacy and Electric Reliability in China, India, France, and Texas and published after three years of research by Aarhus University, Vermont Law School and CNA Corporation, show that most power plants do not even log how much water they use to keep the systems going.

"It's a huge problem that the electricity sector do not even realize how much water they actually consume," Sovacool said. "And together with the fact that we do not have unlimited water resources, it could lead to a serious crisis if nobody acts on it soon."

Unless water use is drastically minimized, the researchers found that widespread drought will affect between 30 and 40 percent of the planet by 2020, and another two decades after that will see a severe water shortage that would affect the entire planet. The demand for both energy and drinking water would combine to aggressively speed up drought, which in turn could exacerbate large-scale health risks and other global development problems.

"The policy and technology choices made to meet demand will have immense implications for water withdrawals and consumption, and may also have significant economic, human health, and development consequences," the report states.

The research says that utilizing alternative energy sources like wind and solar systems is vital to mitigating water consumption enough to stave off the crisis. "Unsubsidized wind power costs... are currently lower than coal or nuclear and they are continuing to drop," the report states. When faced with its worst drought in 2011, Texas got up to 18 of its electricity from wind power and was able to avoid the kind of rolling blackouts that plague parts of China, where existing water shortages prevent power plants from operating.

An equally important step would be to shutter "thirsty" fossil fuel facilities in areas that are already experiencing water shortages, like China and India, where carbon emissions can be significantly more impactful.

"[We] have to decide where we spend our water in the future," Sovacool said. "Do we want to spend it on keeping the power plants going or as drinking water? We don't have enough water to do both." More

 

© 2014

Water Resources Fact Sheet - Earth Policy Institute

JULY 30, 2014 Water scarcity may be the most underrated resource issue the world is facing today.

Seventy percent of world fresh water use is for irrigation.

Each day we drink nearly 4 liters of water, but it takes some 2,000 liters of water—500 times as much—to produce the food we consume.

1,000 tons of water is used to produce 1 ton of grain.

Between 1950 and 2000, the world’s irrigated area tripled to roughly 700 million acres. After several decades of rapid increase, however, the growth has slowed dramatically, expanding only 9 percent from 2000 to 2009. Given that governments are much more likely to report increases than decreases, the recent net growth may be even smaller.

The dramatic loss of momentum in irrigation expansion coupled with the depletion of underground water resources suggests that peak water may now be on our doorstep.

Today some 18 countries, containing half the world’s people, are overpumping their aquifers. Among these are the big three grain producers—China, India, and the United States.

Saudi Arabia is the first country to publicly predict how aquifer depletion will reduce its grain harvest. It will soon be totally dependent on imports from the world market or overseas farming projects for its grain.

While falling water tables are largely hidden, rivers that run dry or are reduced to a trickle before reaching the sea are highly visible. Among this group that has limited outflow during at least part of the year are the Colorado, the major river in the southwestern United States; the Yellow, the largest river in northern China; the Nile, the lifeline of Egypt; the Indus, which supplies most of Pakistan’s irrigation water; and the Ganges in India’s densely populated Gangetic basin.

Many smaller rivers and lakes have disappeared entirely as water demands have increased.

Overseas "land grabs" for farming are also water grabs. Among the prime targets for overseas land acquisitions are Ethiopia and the Sudans, which together occupy three-fourths of the Nile River Basin, adding to the competition with Egypt for the river’s water.

It is often said that future wars will more likely be fought over water than oil, but in reality the competition for water is taking place in world grain markets. The countries that are financially the strongest, not necessarily those that are militarily the strongest, will fare best in this competition.

Climate change is hydrological change. Higher global average temperatures will mean more droughts in some areas, more flooding in others, and less predictability overall.

Data and additional resources available at www.earth-policy.org

Research Contact: Janet Larsen (202) 496-9290 ex. 14 or jlarsen (at) earth-policy.org

Water Resources Fact Sheet JULY 30, 2014 Water scarcity may be the most underrated resource issue the world is facing today. Seventy percent of world fresh water use is for irrigation. Each day we drink nearly 4 liters of water, but it takes some 2,000 liters of water—500 times as much—to produce the food we consume. 1,000 tons of water is used to produce 1 ton of grain. Between 1950 and 2000, the world’s irrigated area tripled to roughly 700 million acres. After several decades of rapid increase, however, the growth has slowed dramatically, expanding only 9 percent from 2000 to 2009. Given that governments are much more likely to report increases than decreases, the recent net growth may be even smaller. The dramatic loss of momentum in irrigation expansion coupled with the depletion of underground water resources suggests that peak water may now be on our doorstep. Today some 18 countries, containing half the world’s people, are overpumping their aquifers. Among these are the big three grain producers—China, India, and the United States. Saudi Arabia is the first country to publicly predict how aquifer depletion will reduce its grain harvest. It will soon be totally dependent on imports from the world market or overseas farming projects for its grain. While falling water tables are largely hidden, rivers that run dry or are reduced to a trickle before reaching the sea are highly visible. Among this group that has limited outflow during at least part of the year are the Colorado, the major river in the southwestern United States; the Yellow, the largest river in northern China; the Nile, the lifeline of Egypt; the Indus, which supplies most of Pakistan’s irrigation water; and the Ganges in India’s densely populated Gangetic basin. Many smaller rivers and lakes have disappeared entirely as water demands have increased. Overseas "land grabs" for farming are also water grabs. Among the prime targets for overseas land acquisitions are Ethiopia and the Sudans, which together occupy three-fourths of the Nile River Basin, adding to the competition with Egypt for the river’s water. It is often said that future wars will more likely be fought over water than oil, but in reality the competition for water is taking place in world grain markets. The countries that are financially the strongest, not necessarily those that are militarily the strongest, will fare best in this competition. Climate change is hydrological change. Higher global average temperatures will mean more droughts in some areas, more flooding in others, and less predictability overall. (PDF version) Data and additional resources available at www.earth-policy.org Research Contact: Janet Larsen (202) 496-9290 ex. 14 or jlarsen (at) earth-policy.org

 

 

© 2014

India and Pakistan at Odds Over Shrinking Indus River

Nearly 30 percent of the world's cotton supply comes from India and Pakistan, much of that from the Indus River Valley. On average, about 737 billion gallons are withdrawn from the Indus River annually to grow cotton—enough to provide Delhi residents with household water for more than two years. (See a map of the region.)

Baseera Pakistan Aug 2010

"Pakistan's entire economy is driven by the textile industry," said Michael Kugelman, a South Asia expert at the Woodrow Wilson International Center for Scholars. "The problem with Pakistan's economy is that most of the major industries use a ton of water—textiles, sugar, wheat—and there's a tremendous amount of water that's not only used, but wasted," he added.

The same is true for India.

That impact is an important part of a complex water equation in countries already under strain from booming populations. More people means more demand for water to irrigate crops, cool machinery, and power cities. The Indus River, which begins in Indian-controlled Kashmir and flows through Pakistan on its way to the sea, is Pakistan's primary freshwater source—on which 90 percent of its agriculture depends—and a critical outlet of hydropower generation for both countries.

(Related: "See the Global Water Footprint of Key Crops")

Downstream provinces are already feeling the strain, with some dried-out areas being abandoned by fishermen and farmers forced to move to cities. That increases competition between urban and rural communities for water. "In areas where you used to have raging rivers, you have, essentially, streams or even puddles and not much else," said Kugelman.

In years past, the coastal districts that lost their shares of the Indus' flows have become "economically orphaned," the poorest districts in the country, according to Pakistani water activist Mustafa Talpur. Because Pakistani civil society is weak, he says, corruption and deteriorating water distribution tend to go hand in hand.

In the port city of Karachi, which depends for its water on the Indus, water theft—in which public water is stolen from the pipes and sold from tankers in slums and around the city—may be a $500-million annual industry.

In the balance is the fate not only of people, but important aquatic species like the Indus River dolphin, which is now threatened to extinction by agricultural pollution and dams, among other pressures. Scientists estimate that fewer than 100 individuals remain.

Threat to Peace?

One of the potentially catastrophic consequences of the region's fragile water balance is the effect on political tensions.

In India, competition for water has a history of provoking conflict between communities. In Pakistan, water shortages have triggered food and energy crises that ignited riots and protests in some cities. Most troubling, Islamabad's diversions of water to upstream communities with ties to the government are inflaming sectarian loyalties and stoking unrest in the lower downstream region of Sindh.

But the issue also threatens the fragile peace that holds between the nations of India and Pakistan, two nuclear-armed rivals. Water has long been seen as a core strategic interest in the dispute over the Kashmir region, home to the Indus' headwaters. Since 1960, a delicate political accord called the Indus Waters Treaty has governed the sharing of the river's resources. But dwindling river flows will be harder to share as the populations in both countries grow and the per-capita water supply plummets.

Some growth models predict that by 2025, India's population will grow to triple what it was—and Pakistan's population to six times what it was—when the Indus treaty was signed. Lurking in the background are fears that climate change is speeding up the melting of the glaciers that feed the river.

Mountain glaciers in Kashmir play a central role in regulating the river's flows, acting as a natural water storage tank that freezes precipitation in winter and releases it as meltwater in the summer. The Indus is dependent on glacial melting for as much as half of its flow. So its fate is uniquely tied to the health of the Himalayas. In the short term, higher glacial melt is expected to bring more intense flooding, like last year's devastating deluge.

Both countries are also racing to complete large hydroelectric dams along their respective stretches of the Kashmir river system, elevating tensions. India's projects are of a size and scope that many Pakistanis fear could be used to disrupt their hydropower efforts, as well as the timing of the flows on which Pakistani crops rely.

(Related: "Seven Simple Ways to Save Water")

"Many in Pakistan are worried that, being in control of upstream waters, India can easily run Pakistan dry either by diverting the flow of water by building storage dams or using up all the water through hydroelectric power schemes," said Pakistani security analyst Rifaat Hussain.

For years, Pakistani politicians have claimed India is responsible for Pakistan's water troubles. More recently, militant groups have picked up their rhetoric. Hafiz Saeed, the founder of the Pakistani militant group allegedly responsible for the 2008 terror attack in Mumbai, even accused India of "water terrorism."

Hope for the Future

In the past few months, however, the situation has improved, according to Kugelman. "We've been hearing nearly unprecedented statements from very high-level Pakistani officials who have essentially acknowledged that India is not stealing Pakistan's water, and that Pakistan's water problems are essentially a function of internal mismanagement issues," he said. Militants are still griping, he said, "but not as shrilly."

This may be because the two countries are cooperating on water and other issues better than before, and because militants are now focusing less on their archenemy in India and more on coalition forces in Afghanistan.

"But I imagine this is momentary," said Kugelman. "The facts on the ground—the water constraints in both India and Pakistan—have not abated. They're both still very serious and getting worse."

What's needed, he says, is more conservation and adaptation—a smarter way of doing business. More

This Article is part the National Geographic Society’s freshwater initiative and is a multiyear global effort to inspire and empower individuals and communities to conserve freshwater and preserve the extraordinary diversity of life that rivers, lakes, and wetlands sustain.

 

© 2014

Rains Failing Over India:

Feeble 2014 Monsoon Heightens Concerns That Climate Change is Turning A Once-Green Land into Desert

El Nino has yet to be declared. Though signs of the Pacific Ocean warming event abound, they are still in the early stages. But for all the impact on the current Indian Monsoon — the rains this vast sub-continent depends on each year for a majority of its crops — the current pre-El Nino may as well be a monster event comparable to 1998.

For the rains that have come so far have been feeble. By June 18, precipitation totals were more than 50% below the typical amount by this time of year for northern and central India and 45% below average for the country as a whole. A stunted Monsoon that many are saying is about as weak as the devastatingly feeble 2009 summer rains. And with Pacific Ocean conditions continuing to trend toward El Nino, there is concern that this year’s already diminished rains will snuff out entirely by mid-to-late summer, leaving an already drought-wracked India with even less water than before.

Through June 25th, the trend of abnormally frail monsoonal rains continued unabated:

India cloud cover on June 25, 2013 [Left Lower image] compared to India cloud cover on June 25 of 2014 [right upper image].

Note the almost complete lack of storms over India for this year compared to 2013 when almost the entire country was blanketed by rains. Image source: LANCE-MODIS.)

India’s Rain Pattern Has Changed

It’s not just that 2014 is a bad year for India. It’s that the current weakened monsoon comes at the tail end of a long period in which the rains have increasingly failed. Where in the past it took a strong El Nino to stall the rains, ever-increasing human atmospheric and ocean warming have pushed the threshold for Monsoonal failure ever lower. Now even the hint of El Nino is enough to set off a dry spell. A growing trend of moisture loss that is bound to have more and more severe consequences.

A new study by Stanford University bears out these observations in stark detail. For the yearly monsoon that delivers fully 80 percent of India’s rains has fallen in intensity by more than 10% since 1951. And though a 10% loss may seem relatively minor, year on year, the effects are cumulative. Overall, the prevalence of dry years increased from 1981 to 2011 by 27% and the number of years experiencing 3 or more dry spells doubled.

Meanwhile, though a general drying trend has taken hold, rain that does occur happens in more intense bursts, with more rain falling over shorter periods. These newly intensified storms are more damaging to lands and homes, resulting in both increasing destruction of property while also greatly degrading the land through more intense erosion.

25 Percent of India’s Land is Turning to Desert

Loss of annual monsoonal rains is coming along with a dwindling of water flows from the melting Himalayan glaciers. These two climate change induced drying effects are already having stark impacts.

For according to the Indian Government’s Fifth National Report on Desertification, Land Degradation and Drought, a quarter of India’s land mass is now experiencing desertification even as 32 percent is suffering significant degradation due to heightening dryness and erosion. This amounts to more than 80 million hectares of land facing desertification while more than 100 million hectares are steadily degrading. The report also noted that areas vulnerable to drought had expanded to cover 68% of the Indian subcontinent.

From the report: (India Monsoon.)

Desertification and loss of biological potential will restrict the transformation of dry lands into productive ecosystems. Climate change will further challenge the livelihood of those living in these sensitive ecosystems and may result in higher levels of resource scarcity.

Monsoonal Delay, Weakening Continues

By today, June 26, the long disrupted and weakened monsoon continues to sputter. Moisture flow remains delayed by 1-2 weeks even as the overall volume of rainfall is greatly reduced.

Though storms have exploded over some provinces, resulting in flash flooding, much of the country remained abnormally dry.

Overall, preliminary negative rainfall departures remained at greater than 40% below average for most of the nation with only five provinces receiving normal rainfall and the remaining 31 receiving either deficient or scant totals. More

 

 

 

© 2014

Drought in Syria: a Major Cause of the Civil War?

Syria's devastating civil war that began in March 2011 has killed over 200,000 people, displaced at least 4.5 million, and created 3 million refugees.

Figure 1. The highest level of drought,
"Exceptional", was affecting much of
Western Syria in April 2014, as measured
by the one-year Standardized Precipitation
Index (SPI).
Image credit: NOAA's Global Drought Portal

While the causes of the war are complex, a key contributing factor was the nation's devastating 2006 - 2011 drought, one of the worst in the nation's history, according to new research accepted for publication in the journal Weather, Climate, and Society by water resources expert Dr. Peter Gleick of the Pacific Institute. The drought brought the Fertile Crescent's lowest 4-year rainfall amounts since 1940, and Syria's most severe set of crop failures in recorded history. The worst drought-affected regions were eastern Syria, northern Iraq, and Iran, the major grain-growing areas of the northern Fertile Crescent. In a press release that accompanied the release of the new paper, Dr. Gleick said that as a result of the drought, "the decrease in water availability, water mismanagement, agricultural failures, and related economic deterioration contributed to population dislocations and the migration of rural communities to nearby cities. These factors further contributed to urban unemployment, economic dislocations, food insecurity for more than a million people, and subsequent social unrest."

More

© 2014