Yesterday, in a post on his Dot Earth blog, New York Times science reporter Andrew Revkin called attention to the fact that 2.6 billion people lack access to sanitation facilities—and that includes pit latrines, not just flush toilets. The World Health Organization estimates that inadequate water, sanitation, and hygiene are responsible for 4 percent of all deaths worldwide and 5.7 percent of the total global disease burden (including premature death and years lost to disability caused by disease). Children are the most acutely affected by poor sanitation: 1.5 million children die each year from diseases—primarily diarrhea—caused by inadequate sanitation.

Tomorrow is World Water Day, and in honor of 2008 being the International Year of Sanitation, the United Nations and other organizations will strive to raise people’s awareness of sanitation, combat the taboos against discussing it, and galvanize efforts to halve the number of people without access to sanitation by 2015—a Millennium Development Goal.

The Environmental Change and Security Program’s (ECSP) Navigating Peace Initiative seeks to call attention to the importance of water and sanitation issues. ECSP’s Water Stories Flash website includes a multimedia presentation on dry sanitation in Mexico, while “Low-Cost Sanitation: An Overview of Available Methods,” an article by Alicia Hope Herron in ECSP’s recent report Water Stories: Expanding Opportunities in Small-Scale Water and Sanitation, analyzes the pros and cons of the numerous inexpensive, innovative sanitation technologies currently available.

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.

A senior wildlife official with the Congolese Institute for the Conservation of Nature (ICCN) was arrested this week amid charges that he organized the executions of up to 10 endangered mountain gorillas in Virunga National Park last year. The official is also accused of cutting down protected trees to convert them into charcoal. WildlifeDirect, a wildlife conservation NGO that works in the park, suggested that Mashagiro had orchestrated the killings of the gorillas to distract rangers from the charcoal production, which was destroying the gorillas’ habitat, and to discourage the rangers from protecting the gorillas.

Last month, the New Security Beat reported on a new agreement between the Democratic Republic of the Congo (DRC), Uganda, and Rwanda to protect the mountain gorillas’ rapidly diminishing habitat. The initiative was one of the few promising developments for the gorillas over the past several months.

In early March, rebels who had taken control of the park’s Gorilla Sector—home to half of the world’s approximately 720 gorillas—threatened to kill any park ranger who attempted to enter it. According to local officials, the rebels have set up a parallel gorilla administration in the sector, charging tourist groups to view the gorillas. The park rangers had hoped they would be permitted to enter the Gorilla Sector following a January 2008 peace agreement between the Congolese government and the rebel groups, but the rebels have continued to forbid them from returning to the area.

“The defining challenge of the 21st century will be to face the reality that humanity shares a common fate on a crowded planet,” asserts leading international economist Jeffrey Sachs in his new book, Common Wealth: Economics For A Crowded Planet. Sachs argues that multilateral, multisectoral cooperation is needed to address four critical global challenges: climate change, population growth, poverty, and the ineffectiveness of global institutions. By investing two to three percent of the world’s annual income in combating these problems, he contends in a piece in Slate magazine, “10 million children per year can be saved from death while stabilizing the world’s population growth, ending extreme poverty, curbing climate change, and developing alternative energy sources.”

Humanity has successfully achieved several significant collective goals, says Sachs—for instance, the almost complete eradication of polio in the last half-century, and a 90 percent decline in the prevalence of measles over the past seven years. Yet nations continue to direct massive amounts of funding toward military responses to security problems, while failing to fund far less expensive ways of preventing violent conflict.

As Sachs opines in Slate, “Today’s impoverished drylands continue to combust in a tinderbox of violence…We send armies when we should send engineers and doctors. Violence is spreading. In seven brief years, we will have squandered more in the so-called ‘war on terror’ than all the world has ever given in all of its aid to all of Africa for all time.” Sachs says his book is an attempt to galvanize world leaders to take quick and decisive collective action to address these long-term security issues.

New research suggests that strengthening local natural resource management (NRM) can also improve governance and reduce the risk of violent conflict. Community involvement in governing natural resources is vital to successful conflict prevention, however. In this ECSP podcast, Masego Madzwamuse of the World Conservation Union’s (IUCN) Region of Southern Africa office describes how IUCN’s Community-Based Natural Resource Management (CBNRM) Support Programme in Botswana helps communities manage their own rangeland, forests, and water. Illustrating NRM-governance-conflict connections in a different part of the world, David Bray of Florida International University recounts his work in two adjacent watersheds in Guerrero, Mexico—one where strong community-led NRM helped prevent conflict, and another where weak community institutions contributed to violent situations.

“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.”

Rising prices for staple crops like rice, wheat, and corn—driven by growing demand, poor harvests in some regions, the high price of oil, and the conversion of many crops to biofuel—have spurred recent protests in Mexico, Morocco, Indonesia, Uzbekistan, Yemen, Guinea, Burkina Faso, Mauritania, and Senegal, where people are becoming unable to afford to feed themselves and their families. Last week, the European Union announced its largest food aid package ever, dedicating $243 million to Africa, Asia, and the Middle East. Earlier this week, the World Bank announced that it will nearly double its loans to Africa this year, partially to help countries cope with rising food prices.

Last month, the UN Food and Agriculture Organization (FAO) reported that skyrocketing food prices have caused 36 countries to need external food assistance, and noted that many of these countries have seen their food shortage difficulties exacerbated by extreme weather or violent conflict. Earlier this month, the FAO released a report showing that climate change will likely diminish agricultural output in the Middle East and North Africa. (Visit the FAO’s World Food Situation Portal for more valuable data and reports on food scarcity.)

Some developing countries have found it more economical to import food than produce their own, which has simultaneously decreased global food supply and increased demand. In addition, when developing countries like China and India do achieve greater prosperity, this generally leads to higher consumption of meat and dairy products, which require more grain—and eight times more land—to produce than vegetables and staples.

Experts and leaders agree that boosting agricultural production should be a top international priority. “It is clear,” said John Beddington, the British government’s chief scientific adviser, “that science and research to increase the efficiency of agricultural production per unit of land is critical.” In addition, UN Secretary-General Ban Ki-moon recently suggested that a “Green Revolution” in Africa could help increase efficiency and food security. (Read more on prospects for a Green Revolution in Africa here.)

Speaking last month at the World Economic Forum in Davos, Switzerland, World Bank President Robert Zoellick called hunger and malnutrition “the forgotten Millennium Development Goal” and argued that “increased food prices and their threat—not only to people but also to political stability—have made it a matter of urgency to draw the attention it needs.”

A European Union (EU) report released ahead of a major EU summit on March 13-14 warns that climate change is likely to create or worsen a host of local, regional, and global security challenges. “Climate change is best viewed as a threat multiplier which exacerbates existing trends, tensions and instability,” says the report.