A lack of consensus among researchers and policymakers over how to define “environmental security,” “national security,” and “human security” complicates discussions of the security implications of environmental and demographic change, assert Robert Mcab and Kathleen Bailey in “Latin America and the debate over environmental protection and national security,” published recently in the Defense Institute of Security Assistance Management Journal. A shortage of theoretical and empirical evidence makes proving the existence of environment-demography-security linkages difficult. Nevertheless, argue the authors, “given the relatively fragile nature of many Latin American economies, accurately addressing these threats is imperative for economic and social stability and security.”

Latin America’s rural environments face severe threats, including deforestation, land degradation, erosion, and water scarcity and pollution. “Human-induced land degradation and water shortages directly affect economic sufficiency in many rural areas,” write the authors. Another environmental cause of insecurity and violence—in Latin America and elsewhere—is land distribution. Inequitable land distribution in El Salvador, Latin America’s most densely populated country, was one of the causes of the country’s 18-year civil war. The 1992 peace agreement that ended the war set up a plan for land redistribution, although some question how fully it has been implemented.

Demographic shifts can also destabilize communities and regions: Migration can generate tensions and violence between newcomers and established populations, as has occurred in the disputed rural region of San Juan, which lies between Nicaragua and Costa Rica. Moreover, Latin America is the most urbanized part of the developing world, and growing urban populations—often swelled by internal migrants—are straining cities’ and municipalities’ ability to provide basic services such as waste disposal and clean water.

Mcab and Bailey emphasize that demographic phenomena such as population growth and migration do not automatically create environmental degradation or threaten national security. Instead, it is the manner in which they interact with other socio-economic and political factors that can lead them to damage the environment or foster insecurity.

The Pacific Institute recently released an updated Water Conflict Chronology, which documents instances of conflict over water from 3000 B.C. through the present.

In an article on the Carnegie Council’s Policy Innovations, Saleem Ali of the University of Vermont argues that commentators should not have been so quick to blame the recent violence in Chad on oil, as civil strife in the country predates the discovery of oil by several decades. If oil revenues were managed transparently, he suggests, they could significantly improve stability and quality of life in Chad.

Robert Engelman of the Worldwatch Institute highlights recent population trends—such as declining global fertility but a growing global population—and emphasizes the difficulty of accurately predicting future ones in the latest edition of Vital Signs.

Video, presentations, and photos—as well as an agenda and list of participants—from last week’s NATO Security Science Forum on Environmental Security are now available online.

“The relationship between natural resources and violent conflict is shaped to a large extent by the quality of the governance of those resources, which in turn is a correlate of good governance in general,” says In Control of Natural Wealth? Governing the resource-conflict dynamic, a report by the Bonn International Center for Conversion. “Furthermore, our results confirm the assumption that good (resource) governance increases state stability and, in countries that had experienced violent conflict, the duration of peace.”

Peri-Urban Water Conflicts: Supporting dialogue and negotiation, a report by the Netherlands’ IRC International Water and Sanitation Centre, explores water conflicts on the outskirts of three developing country cities: Cochabamba, Bolivia; Chennai, India; and São Paolo, Brazil.

“Poverty Reduction and Millennium Development Goals: Recognizing Population, Health, and Environment Linkages in Rural Madagascar,” published in Medscape General Medicine, evaluates Madagascar’s progress toward meeting the Millennium Development Goals and discusses how the government’s plans for the country’s development address the linkages between poverty, population, health, and environment.

According to a study carried out by Michael Ross of UCLA, vast oil wealth tends to diminish women’s rights. “Oil production reduces the number of women in the labor force, which in turn reduces their political influence. As a result, oil-producing states are left with atypically strong patriarchal norms, laws, and political institutions,” writes Ross.

The Economist reports on the global effects of China’s growing hunger for natural resources—including oil, copper, grain, and timber. “Some non-governmental organisations worry that Chinese firms will ignore basic legal, environmental and labour standards in their rush to secure resources, leaving a trail of corruption, pollution and exploitation in their wake.”

Migration and Climate Change, a new report prepared by Oli Brown for the International Organization for Migration, examines current and future migration due to climate change; explores climate change-related migration’s implications for development; and recommends policy responses.

The rapid recovery of nature tourism in Kenya is central to stabilizing the fragile nation, bolstering its economy, and protecting its biodiversity, said UN Environment Programme Director Achim Steiner.

Two articles from Reuters highlight the intertwined environmental, demographic, and political challenges Yemen faces. “Yemen’s painful struggle to build a modern state may be overwhelmed by rampant population growth, dwindling resources, corruption and internal conflicts,” writes special correspondent Alistair Lyon. One of Yemen’s greatest challenges is water scarcity, which is only becoming more acute as the population booms.

“Many argue that demographic trends can interact with other factors such as poverty, poor governance, competition for natural resources, and environmental degradation to exacerbate tensions and contribute to conflict….Family planning will not end conflict, of course, but slowing the rate of population growth can help stabilize a country in turmoil,” writes ECSP’s Gib Clarke on the RH Reality Check blog.

Papers and presentations from “Population, Health, and Environment: Integrated Development for East Africa,” a November 2007 conference in Addis Ababa, Ethiopia, that the Environmental Change and Security Program helped organize, are now available online.

In “An End to One-Child Families in China?,” a recent post on his blog, Dot Earth, New York Times science reporter Andrew Revkin comments on reports that China is considering ending its one-child policy. But a few of Revkin’s assumptions about population and its relationship to climate change are a tad oversimplified:

1. Revkin writes, “Demographers I consulted today said this [relaxing of the one-child policy] could overturn predictions of an imminent end to global population growth.”

Who’s predicting an imminent end to population growth? The latest UN mid-range projections predict the global population will continue to grow over the next several decades—to 9.2 billion by 2050. Furthermore, even without China abandoning its one-child policy, many already consider the UN mid-range projections optimistically low, since they assume that funding for family planning will continue to increase and the total fertility rate will continue to fall (neither of which is guaranteed). If fertility rates remain the same as they are today, the world population will be 11.9 billion in 2050.

2. Revkin also writes, “Urbanization is likely to help [reduce human impact on the environment] more than hurt.”

But according to Brian O’Neill, a scientist who studies the relationships between demographic variables and climate change at the National Center for Atmospheric Research’s Institute for the Study of Society and Environment, preliminary projections of future urbanization in China show higher levels of urbanization correlating with an increase, not a decrease, in carbon emissions. (For more on O’Neill’s findings, click here.) 2008 will mark the first time in history more people have lived in urban areas than in rural ones, and the UN Population Division estimates that by 2050, 70 percent of the world’s population will reside in cities. Given that the vast majority of future population growth—including urban population growth—will be in developing countries, energy-efficient and environmentally friendly design in developing country cities will be crucial in the coming decades.

Norman Borlaug’s innovative plant breeding techniques—which he used to develop varieties of wheat resistant to stem rust—spawned the Green Revolution and earned him the Nobel Peace Prize in 1970. An article in MIT Technology Review (free registration required) discusses why the Green Revolution did not spread to Africa and which policies and techniques could strengthen African agriculture.

In Dead Water, a report released today by the UN Environment Programme, warns that pollution, overharvesting, invasive species, and climate change pose grave threats to the world’s fisheries and coral reefs. “Fishing for a Secure Future,” a recent meeting series hosted by the Wilson Center’s Environmental Change and Security Program (ECSP), examined the many challenges facing fisheries—as well as potential solutions.

U.S. officials might have taken more aggressive steps to combat climate change at the recent UN climate change conference in Bali had the Pentagon pressured them more forcefully, argue John Podesta and Peter Ogden in a Financial Times op-ed. According to Podesta and Ogden, climate change will threaten the U.S. military’s ability to effectively perform many of its duties, including responding to natural disasters and stabilizing fragile states.

“While governments continue to rely on the military as a preferred tool of security policy, the nature of many of the world’s intractable conflicts suggests severely misplaced priorities. Research suggests that among the underlying reasons for many tensions today are competition over lucrative resources and the repercussions from environmental degradation,” writes the Worldwatch Institute’s Michael Renner, who argues that UN peacekeeping forces, if given sufficient funds, could do a better job calming unstable regions than militaries. Renner also discussed environment-conflict links at the Wilson Center in June 2007.

Mongolians are moving from the steppes to cities in record numbers, and climate change is one of the drivers of this migration, reports National Geographic. “Reign of Sand,” a multimedia report by the Wilson Center’s China Environment Forum and water NGO Circle of Blue, explores how desertification is threatening Inner Mongolians’ traditional livelihoods.

A report by the Population Council examines the impact of the Partners for Food Security project, which aimed to reduce the food insecurity of HIV-infected households in Tororo, Uganda, by fostering collaboration among agricultural, health, and economic development organizations. According to the report, “the coordination of agricultural extension and HIV/AIDS education and awareness can enhance the outcomes of both sets of activities.”

A paper commissioned by the Institute for Global Dialogue and the Open Society Initiative for Southern Africa explores the prospects for sharing and jointly managing the water resources of the Southern African Development Community (SADC). “Water resources availability has been and still is high on the national security agenda of most SADC states,” write Daniel Malzbender and Anton Earle.

A report from the Institute for Policy Studies analyzes the disparities between the U.S. government’s FY 2008 spending on military security and climate security.

The United Nations, European Union, and United States each have important roles to play in mitigating climate change’s security threats, argue John Podesta and Peter Ogden in The Washington Quarterly. The article echoes The Age of Consequences: The Foreign Policy and National Security Implications of Climate Change, published jointly last year by the Center for a New American Security, which Podesta heads, and the Center for Strategic and International Studies.

UNAIDS released a statement earlier this week expressing its concern that the recent violence in Kenya is disrupting efforts to combat the country’s HIV/AIDS epidemic.

In the Global Dashboard blog, David Steven remarks on three “hidden drivers” of instability in Pakistan: the government’s failure to capitalize on the “demographic dividend,” the potential socio-economic benefits of a large working-age population; the rising food, water, and energy scarcity faced by working- and middle-class Pakistanis; and what Steven calls “the worrying role being played by the Pakistan army, once a source of national stability and pride.”