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Population Growth and Climate Change Threaten Urban Freshwater Provision
May 6, 2011 // By Emanuel FeldMOREBy 2050, more than one billion urban dwellers could face perennial freshwater shortages if major improvements are not made to water management practices and infrastructure, according to a recent study published in the journal PNAS, “Urban Growth, Climate change, and Freshwater Availability.” These challenges will arise as hydrologic changes due to climate change compound “an unprecedented wave of urban growth,” with nearly three billion additional urban residents forecast by 2050. “It is a solvable problem,” the study argues, “but one that will take money, time, political will, and effective governance.”
Using demographic data from the Earth Institute at Columbia University, as well as a variety of climate and city-level demographic scenarios, the researchers estimate per-capita water availability for cities in the developing world, where urban growth will be most rapid. They advise, however, that their findings should be taken as conservative estimates, since the study assumes cities can use all nearby water and does not account for key challenges relating to water quality and delivery to urban centers.
In 2000, 150 million people in developing countries lived in urban areas that could not support their own water requirements (i.e. less than 100 liters available per person per day). By 2050, according to the study, urban population growth alone could bring this figure to 993 million and more than three billion could face intermittent shortages at least one month out of the year. When the researchers expanded the area on which cities can draw upon to include a 100 km buffer zone, these values drop to 145 million and 1.3 billion, respectively.
However, once climate and land use change are included in the models, the aggregate number of people facing perennial shortages rises a further 100 million, if only water stores within the urban area are considered, or 22 million, for the 100 km buffer zone model.
Remarkably, these aggregate figures differ very little among the various demographic and climate scenarios. The particularities of the challenge do however vary at the regional level. Perennial water shortage will generally be limited to cities in the Middle East and North Africa. Seasonal water shortages, on the other hand, will be geographically widespread, although rapidly urbanizing India and China will be especially hard hit.
The study acknowledges the temptation to view water shortage “as an engineering challenge.” Still, the lead author, Rob McDonald of The Nature Conservancy, cautions against exclusive reliance on grey infrastructure solutions (e.g. canals and dams) in an article for Nature Conservancy, saying:Some new infrastructure will be needed, of course – that’s the classic way cities have solved water shortages. But especially in parts of the world where there’s lots of cities, just going out farther or digging deeper to get water can’t be the only solution.
Instead, McDonald and co-authors Pamela Green, Deborah Balk, Balazs M. Fekete, Carmen Revenga, Megan Todd, and Mark Montgomery, emphasize the need for cities to encourage more efficient water use by their industrial and residential sectors, as well as the potential to engage the water-intensive agriculture sector in surrounding rural areas.
“Bottom line,” McDonald said in an interview with Robert Lalasz of The Nature Conservancy’s Cool Green Science blog, “don’t think of those high numbers as a forecast of doom. They are a call to action.”
Emanuel Feld is a student at Yale University studying economics and the environment.
Sources: Cool Green Science, PNAS, The Nature Conservancy.
Photo Credit: Adapted from “Chennai prayed too hard…. Part I,” courtesy of flickr user Pandiyan.Topics: Africa, climate change, development, environment, Middle East, population, urbanization, water -
From the Wilson Center
Watch ‘Dialogue’ TV on Integrating Development, Population, Health, and the Environment
MORELast week on the Wilson Center’s Dialogue radio and television program, host John Milewski spoke with Geoff Dabelko, director of ECSP, Roger-Mark De Souza, vice president for research and director of the Climate Program for Population Action International, and George Strunden, vice president of Africa programs for the Jane Goodall Institute. They discussed the challenge of integrating population, health, and environmental programs (PHE) to address a broad range of livelihood, development, and stability issues. [Video Below]
“Many times that we tackle development or poverty and human well-being challenges…we do it in an individual sector – the health sector, or agriculture sector, or looking at issues of water scarcity – and it makes sense in many respects to take those individual focuses,” said Dabelko. “But of course people living in these challenges, they’re living in them together…so both in terms of understanding the challenges…and then in responding to those challenges, we have to find ways to meet those challenges together.”
De Souza noted that the drive for integrated development stems from the communities being served, not necessarily from outside aid groups. “We’ve seen that there’s a greater impact because there’s longer sustainability for those efforts that have an integrated approach,” he said. “There’s a greater understanding and a greater appreciation of the value that [PHE] projects bring.”
Strunden said that the Goodall Institute has found similar success in tying health efforts with the environment in places where previously conservation work alone had been unsuccessful.
The panelists also discussed the role of population in broader global challenges, including energy, water, and food scarcities, and women’s rights.
Dialogue is a co-production of the Woodrow Wilson International Center for Scholars and MHz Networks. The show is also available throughout the United States on MHz Networks, via broadcast and cable affiliates, as well as via DirecTV and WorldTV (G19) satellite.
Find out where to watch Dialogue where you live via MHz Networks. You can send questions or comments on the program to dialogue@wilsoncenter.org. -
Watch: Jennifer Dabbs Sciubba on Population and National Security
April 28, 2011 // By Schuyler Null“Long-term trends really are what shape the environment in the future,” said Jennifer Dabbs Sciubba in this interview with ECSP. “As we’ve seen recently with…revolution in North Africa, it’s the long-term trends that act together for these things to happen – I like to say demography is not usually the spark for a conflict but it’s the fodder.”MORE
Sciubba is the Mellon Environmental Fellow in the Department of International Studies at Rhodes College. In her new book, The Future Faces of War: Population and National Security, she discusses the importance of demographic trends in relation to security and stability, including age structure, migration, youth bulges, population growth, and urbanization.
One of the most important things to emerge from the book, said Sciubba, is that countries that are growing at very high rates that are overwhelming the capacities of the state (like many in sub-Saharan Africa) really will benefit from family planning efforts that target unmet need.
Afghanistan, for example, “has an extremely young age structure,” Sciubba pointed out. “So if you’re trying to move into a post-conflict reconstruction atmosphere…you absolutely have to take into account population and the fact that it will continue to grow.”
“Even if there are major moves now in terms of reducing fertility, they have decades ahead of this challenge of youth entering the job market,” Sciubba said. “Thousands and thousands more jobs will need to be created every year, so if you have a dollar to spend, that’s a really good place to do it.”
For more on Jennifer Dabbs Sciubba and The Future Faces of War, see her book launch at the Wilson Center with Deputy Under Secretary Kathleen Hicks of the Department of Defense (video) and some of her previous posts on The New Security Beat.Topics: Afghanistan, Africa, demography, family planning, Middle East, military, population, security, video, youth -
Watch: Addressing the National Security Implications of U.S. Oil Dependency
April 27, 2011 // By Schuyler NullBoth the civilian and military sectors have key roles to play in achieving energy security as the United States addresses the national security implications of its oil dependency. Yesterday, the White House hosted a forum with senior officials from both the public and private sector to highlight avenues toward achieving that security. Co-hosts Deputy Energy Secretary Daniel Poneman and Deputy Defense Secretary William Lynn were joined by Woodrow Wilson Center President Jane Harman, John Podesta of the Center for American Progress, and John Deutch of the Massachusetts Institute of Technology.MORE
The panelists discussed ongoing cooperation between the Department of Energy and Department of Defense, and Harman in particular highlighted the power of the military to drive innovation and more efficient production of energy-efficient technologies.
“‘Energy security’…reminds us that important domestic energy developments have international consequences, and important international events have domestic consequences,” said Deutch, pointing out the linked, global nature of energy markets and climate change.
Deputy Secretary Lynn highlighted the tactical tactical benefits of reduced petroleum dependence with the example of a solar panel pilot program being conducted by the Marine Corps in Afghanistan:The regiment selected to try out the solar panels deployed to one of the most violent districts in Helmand province. The operational gains were immediate: Marines ran two patrol bases completely on solar power and cut diesel fuel consumption at a third base by over 90 percent. On one three-week foot patrol, flexible solar panels eliminated battery resupply needs entirely, ending supply drops that previously were required every 48 hours.
Watch the full forum above, and see also the recent National Conversation at the Woodrow Wilson Center that focused on “A New National Security Narrative.” -
Aspen Institute: The Revolution We Need in Food Security and Population
April 27, 2011 // By Wilson Center StaffMOREThe first months of this year brought the second global food price crisis in just three years, with soaring food prices against a backdrop of bad weather, poor harvests, and political turmoil in North Africa and the Middle East. This year will see another milestone: the planet’s population is set to surpass seven billion, with most of the population growth occurring in countries least equipped to meet rising demands on agriculture and the environment. As part of its 7 Billion: Conversations that Matter roundtable series, the Aspen Institute’s Global Health and Development Program brought together three experts to discuss “The Revolution We Need in Food Security and Population” on April 12.
Topics: agriculture, consumption, Egypt, environment, food security, global health, Middle East, population, Tunisia, video -
Reading Radar
Population Growth and its Relation to Poverty, the Environment, and Human Rights
MORE“Population, Poverty, Environment, and Climate Dynamics in the Developing World,” in the Interdisciplinary Environmental Review, by Jason Bremner, David Lopez-Carr, Laurel Suter, and Jason Davis, attempts to illuminate and clarify the complex relationships between environmental degradation, population dynamics, and poverty. Population growth is a key driver for the degradation of ecosystem services which has a direct impact on livelihoods and human well-being, write the authors, especially for the poor. They argue that “population growth itself, however, remains an insufficient explanation of the relationship between population, ecosystems, and poverty.” While the field has a come a long way since its “original Malthusian roots,” they write, the relationships between these dynamics differ greatly depending on the area in question, and much work remains to be done on the less well-studied ecosystems.In “An End to Population Growth: Why Family Planning Is Key to a Sustainable Future” from the Solutions Journal, Robert Engelman reminds us that population projections are not set in stone and that the widespread belief that population has to reach nine billion before leveling off is wrong. Nor is coercive “population control” necessary, he writes: “Population growth rates and average family size worldwide have fallen by roughly half over the past four decades, as modern contraception has become more accessible and popular.” Unfortunately, there remains a large number of people around the world without access to family planning, the majority of whom live in developing countries. Engelman points out that while the number of people of reproductive age has steadily increased in these countries over the last decade, donor support has declined. He argues that research, courage, and creativity are needed to reverse this situation, but in a world where most of all pregnancies were intended, population growth would slow long before reaching nine billion. -
Beat on the Ground
Making Life Easier in Rural Tanzania
This PHE Champion profile was produced by the BALANCED Project.MORE
Rukia Seif is a population, health, environment (PHE) peer educator who promotes simple economic, environmental, and health behaviors that make sense. In many ways, the Mkalamo village where Rukia lives is a typical rural Tanzanian agricultural village. In another important way it is very different. Mkalamo abuts the biodiversity rich Saadani National Park – the only wildlife park in Tanzania that borders the sea. Ironically, this park does not make life easier for people living in Mkalamo but more difficult. In the park, there is a ban on the cutting of wood, making it difficult to find enough to fuel villagers’ cooking stoves. Also, increasing numbers of the park’s wild animals often destroy the villagers’ precious crops.
As a PHE peer educator, Rukia talks with her fellow community members about simple things they can do to improve their lives. Her messages are clear:- By planning their families, women can ensure their own and their children’s health and can decide the optimal number of children that they can provide for.
- By using fuel efficient stoves, women can spend less time collecting fire wood, freeing up time for other chores or livelihood activities and reducing the amount of needed fuel, thus helping sustain the forests for future generations.
- By joining community-led savings and credit associations, women and men gain access to capital, allowing them to scale-up current livelihoods or diversify to new sources of income.
Rukia sets a good example of how doing these simple things can improve a family’s life and protect the environment. At age 36, she is a mother of three girls, ages 14, 12, and one and a half. Rukia and her husband, Seif Ramadhani, are taking measures to plan their family. Rukia used pills before they decided to have their last daughter. Now they are using condoms as a back-up while Rukia is breastfeeding the baby. Through her work, Rukia meets and talks to many people every day. She discusses family planning and if someone is interested, she refers them to community-based distributors and the dispensary for family planning services.
“I talk to my peers about planning their families so we have enough natural resources to meet the needs of the villagers who depend on these resources,” she said. “Also, when you plan your family, you will get more time to perform other activities.”
An active member of the savings and credit association, where she also acts as the accountant, Rukia is living proof of this last statement. Through savings and loans, Rukia has diversified her income by buying a sewing machine and a fuel-efficient oven. Today, she generates income from cow and poultry husbandry, tailoring, bread-making, selling soft drinks, and constructing fuel-efficient stoves. With this increased income, Rukia and her husband have been able to put an iron sheet roof on their house and send their first-born daughter to secondary school – a great achievement in a country where only five percent of women stay in school beyond the primary level.
Rukia demonstrated her two fuel-efficient stoves: one is a metal oven that she uses for baking breads and cakes, the other is a simple mud stove that she uses for cooking. The mud stove, which costs less than $2 to build, is getting increasingly popular in the community. It saves fuel wood, prevents fires, produces less smoke (a serious health hazard), and cooks the food faster!
“I can even wear my best clothes and put on some lip shine when I use this stove, because it does not foul up the air,” Rukia explains with a laugh. Seeing the benefits of the fuel efficient stoves, she has inspired ten community-based distributors and five village leaders to join the team of individuals showcasing the fuel efficient technologies.
Rukia is a perfect example of practicing what one preaches. She is improving her own life, helping others learn to do the same, and protecting the very natural resources upon which almost everyone in Mkalamo depends.
This PHE Champion profile was produced by the BALANCED Project. A PDF version can be downloaded from the PHE Toolkit. PHE Champion profiles highlight people working on the ground to improve health and conservation in areas where biodiversity is critically endangered. -
Dot-Mom // From the Wilson Center
Is Universal Access to Family Planning a Realistic Goal for Sub-Saharan Africa?
MORE“What do we require to ensure universal access to family planning services that are appropriate, affordable, accessible, and of good quality?” asked Michael Mbizvo, director of the Department of Reproductive Health and Research at the World Health Organization at the Wilson Center last month. [Video Below]
To talk about this difficult question and present research and programmatic evidence for sub-Saharan Africa, Mbizvo was joined by panelists Fred Makumbi, senior lecturer and head of the Department of Epidemiology and Biostatistics at Makerere University, Uganda; Oladosu Ojengbede, director of the Center for Population and Reproductive Health, University of Ibadan, Nigeria; and Frank Taulo, director of the Center for Reproductive Health and senior lecturer of obstetrics and gynecology at the University of Malawi.
Integrating Family Planning and HIV Services
Makumbi shared a number of findings on fertility preferences, behaviors, and contraceptive uptake in the context of HIV infection and care in Uganda. “Integrating family planning services into HIV services could help address the family planning needs of both HIV infected and uninfected,” he said.
According to new research conducted as part of the Rakai Community Cohort Study, despite significant gains in family planning use over time, there is still a high unmet need for contraception, irrespective of HIV status, in the Rakai district of central Uganda, said Makumbi. Male partner’s fertility desires were found to play an important role in pregnancy rates, and compared with previous studies conducted in the Rakai district, researchers saw an increase in pregnancy incidence and prevalence among HIV positive women, especially those on anti-retroviral therapy. HIV care that included voluntary counseling and testing was associated with significant increases in the use of family planning, and in particular, the use of condoms.
To effectively promote universal family planning in sub-Saharan Africa, “there is a need to strengthen family planning services in HIV care programs, with promotion of modern contraceptive methods, and with particular attention to women on anti-retroviral therapy,” said Makumbi. “Strategies to address desire for high fertility need to be developed, especially with regard to male involvement,” he added.
Multi-Pronged Approach to Universal Family Planning
“Family planning success in sub-Saharan Africa is a must for the region’s sustainable development,” said Ojengbede. “Poor commitment to women’s health in sub-Saharan Africa” has not only resulted in high fertility rates and poor maternal health indices but has also negatively impacted economic and human development in the region, said Ojenbede.
To increase access to and use of family planning, Ojengbede stressed the need to generate and sustain government commitment, promote legislation to support women’s autonomy, and implement policies to improve access to quality reproductive health services.
At the community level, Ojengbede said, the public health community must work to integrate family planning services into all reproductive health programs, including prevention of mother to child transmission; accelerate female empowerment programs; actively engage males in family planning access and uptake; and address social and cultural barriers that prevent widespread adoption of family planning.
“Traditional rulers can occupy a critical position to enact positive change in their communities and at the national level,” said Ojengbede. In Nigeria, for example, providing education about the health and economic benefits of family planning has helped traditional leaders embrace family planning and develop their own strategies to promote birth spacing in their communities.
“Universal family planning access must be achieved through a multi-pronged approach that should be colored with socio-cultural sensitivity, solid evidence, and sustainability,” concluded Ojengbede.
Eliminating Unmet Need: “Yes, We Can”
“It is time to prioritize issues that are affecting women and family planning is a very critical area,” said Taulo.
There are still many challenges to overcome before Malawi can achieve universal family planning access, including poverty, misconceptions and myths about family planning, lack of availability of reproductive health supplies, poor infrastructure, shortage of trained professionals, and religious and cultural barriers.
“Commodities are also very much dependent on the donor,” said Taulo, pointing to the challenges of insufficient funding and political will. “Failure to connect family planning to economic development and political stability is one of the main areas that we are struggling with,” he added.
“We have lots of challenges, but also many achievements,” said Taulo. Malawi has made important strides in expanding access to family planning by implementing community-based strategies and youth-friendly programs, developing public-private partnerships, engaging policymakers and traditional leaders, and encouraging media coverage of family planning issues.
“Education is another family planning product,” said Taulo. Moving forward, a “deliberate focus on girl child education” and promotion of women’s welfare can have a major impact on fertility reduction, he said.
“We can eliminate unmet need for family planning in Malawi, if we put our heads together, our thoughts together, and our energy together,” concluded Taulo.
Source: World Health Organization.
Image Credit: “Women’s Health Clinic” courtesy of flickr user advencap.Topics: Africa, demography, Dot-Mom, family planning, From the Wilson Center, global health, HIV/AIDS, population, video
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