This is an exciting time to be working global public health, with more attention and money going to the field in the last decade than perhaps ever before. In the past, the struggle has been to direct more money and attention to these issues, but recent efforts have focused more on maximizing funds’ impact—by strengthening health systems, focusing on prevention, and finishing so-called “unfinished agendas” in maternal health, child mortality, and family planning. In my remarks at a recent panel on foreign policy challenges facing the 111th Congress, I focused on four issues: infectious diseases, neglected health issues, funding, and capacity building.

An 18-month blockade, three weeks of intense bombardment, and continuing sporadic violence are setting up the Gaza Strip for a “devastating humanitarian crisis,” according to the UN Office for the Coordination of Humanitarian Affairs. As of January 31, 1,380 Palestinians had been killed and 5,380 had been injured in the conflict, including many civilians. Additionally, the World Health Organization recently warned that…

The Feeding of the Nine Billion: Global Food Security for the 21st Century, a report from Chatham House, puts forth 10 proposals designed to make the global food system more resilient, sustainable, and equitable.

Strategic Implications of Global Health, a recent report from the National Intelligence Council, builds on a 2000 National Intelligence Estimate analyzing the links between global health and U.S. national security, but places more emphasis on non-infectious issues like maternal mortality, malnutrition, and chronic diseases.

Bill Gates’ first annual letter about his work at the Gates Foundation includes a chart showing that better overall health is linked to smaller families.

“How Much Would You Pay to Save the Planet? The American Press and the Economics of Climate Change,” a discussion paper from Harvard University’s Joan Shorenstein Center on the Press, Politics, and Public Policy, examines coverage of the economic debate over the Lieberman-Warner Climate Security Act of 2008.

Population Connection’s February 2009 Reporter features stories on Ghana’s slow progress on reproductive health and Thomas Friedman’s book Hot, Flat, and Crowded, among others.

The Economist examines the connections between failed states and conflict, terrorism, poverty, and disease. Failed states were a major concern of the recent U.S. National Defense Strategy.

“There’s such a fundamental misunderstanding that most people have about the environment—that it exists outside of us,” said Harvard Medical School’s Eric Chivian at the January 14, 2009, launch of Sustaining Life: How Human Health Depends on Biodiversity, which he co-edited. This disconnect “is really at the heart of the global environmental crisis, and it’s the reason we wrote this book.” Chivian was joined by the Natural Capital Project’s Michael Wright and the Heinz Center’s Thomas Lovejoy, who called Sustaining Life “a remarkable achievement,” for a discussion of the myriad ways in which biodiversity benefits human health—and how its loss endangers us.

Proof Positive: Biodiversity Supports Health

The most exotic—and unlikely—species can yield valuable discoveries, Lovejoy explained. For example, slime molds on the banks of the Zambezi River repel their enemies with chemicals that can treat cancers resistant to Taxol, one of the main chemotherapy drugs—which is itself derived from the needles and bark of the Pacific yew tree. Chivian offered another remarkable example: The best new pain medication, which is 1,000 times more powerful than morphine, is derived from the toxins of marine cone snails.

Of Polar Bears and Parasites

Polar bears—which new research suggests are likely to be extinct in the wild by 2100 due to the melting of the Arctic ice sheet—may help cure several devastating diseases. Polar bears “den,” or near-hibernate, for five to nine months of each year, yet substances in their blood prevent them from losing bone mass during that time. “Osteoporosis is an enormous public health problem; it kills some 70,000 people in the United States every year, costs the U.S. economy $18 billion dollars a year,” explained Chivian.

When they den, polar bears go for months without eating, drinking, defecating, or urinating. Studying this phenomenon may provide humans with alternatives to dialysis or kidney transplants. Finally, while polar bears are extremely obese, they do not develop Type II diabetes. In contrast, 16 million Americans—6 percent of the population—have obesity-related Type II diabetes, costing the United States $91 billion a year. “Again, polar bears may hold the secret for treating this very difficult and lethal disease,” said Chivian.

Not only can certain species help us treat human diseases, but the loss of biodiversity can increase the prevalence of others. For instance, Lyme disease is more common in degraded environments with low vertebrate diversity. In these environments, the disease spreads more quickly because the white-footed mouse—the best vector for Lyme disease—has fewer predators and competitors for food.

Better Safe Than Sorry

By providing dozens of concrete examples of how we depend on and benefit from the environment, Sustaining Life is “a wonderful rebuttal to people who call conservationists treehuggers,” said Wright. Yet he reminded the audience that the path from species to valuable product is serendipitous and unpredictable. Therefore, he argued, we should endeavor to protect all species in order to save those that may most benefit human health.

Chivian, who shared a Nobel Peace Prize for his work on the medical dimensions of nuclear war, argued that it is difficult for the public to grasp the threats posed by climate change: “The level of complexity and abstraction is really an order of magnitude—or many times more than that—greater than it is about nuclear weapons…and therefore, it’s even more essential for physicians and public health professionals to describe and discuss these global environmental changes in human-health terms.”

Photo: Eric Chivian of Harvard Medical School. Courtesy of the Wilson Center and Dave Hawxhurst.

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“As long as we continue to subsidize Gaza’s extreme demographic armament, young Palestinians will likely continue killing their brothers or neighbors. And yet, despite claiming that it wants to bring peace to the region, the West continues to make the population explosion in Gaza worse every year. By generously supporting UNRWA’s budget, the West assists a rate of population increase that is 10 times higher than in their own countries,” argues the University of Bremen’s Gunnar Heinsohn in the Wall Street Journal.

In an article for the Huffington Post, Water Advocates’ John Sauer argues that we should group together waterborne diseases like diarrhea, typhoid, and cholera under the name “No-Plumbing Disease,” to help water and sanitation get the attention they deserve.

It takes a strong editor to push for stories on development issues like poverty and public health, but there is often surprisingly high interest in these stories, writes Richard Kavuma for the Guardian.

Yale Environment 360 sums up President Obama’s statements on the environment in his inaugural address.

The Democratic Republic of the Congo has cancelled nearly 60 percent of its logging contracts in an attempt to end corrupt and environmentally destructive logging, report the BBC and Reuters.

“Could the crises of food, fuel and finance that we experienced in 2008 simply be three canaries in the coalmine? What if these are just the early-warning signals that our current economic system is not sustainable at a much deeper level?” asks Dominic Waughray, head of environmental initiatives at the World Economic Forum.

“A flurry of scientific field work and environmental reports have linked the spread of oil palm plantations in Indonesia to the decimation of rain forests, increased conflict between logging and oil palm interests and rural and indigenous people, and massive CO2 emissions through logging, burning, and the draining of carbon-rich peat lands,” writes Tom Knudson on Yale Environment 360.

A nickel mine in Madagascar is likely to harm biodiversity in one of the world’s most biologically unique places, reports mongabay.com.

“It is high time that India and Pakistan consider the primacy of ecological cooperation as a means of lasting conflict resolution,” argues Saleem Ali in Pakistan’s Daily Times.

Aging populations in developed countries will precipitate massive social and economic upheavals in the 2020s, argue Neil Howe and Richard Jackson of the Center for Strategic and International Studies in a recent Washington Post op-ed. Read Elizabeth Leahy’s response.

Zimbabwe’s current cholera epidemic has killed more than 1,100 people and sickened nearly 24,000, prompting the United States, the United Kingdom, and some African nations to press for sanctions on—and the resignation of—President Robert Mugabe. The impoverished country ranks 151 out of 177 on the UN Human Development Index and has an average life expectancy of 34 for women and 37 for men. Although it has suffered yearly cholera outbreaks since 1998, this year’s epidemic dwarfs previous ones. The epidemic is being aggravated by severe food shortages and the country’s high prevalence of HIV/AIDS, and is expected to continue through the end of the rainy season in March.

“Climate change of that scale [a 5° C increase] will cause enormous resource wars, over water, arable land, and massive population displacements. We’re not talking about ten thousand people. We’re not talking about ten million people, we’re talking about hundreds of millions to billions of people being flooded out, permanently,” said Steven Chu, President-elect Barack Obama’s choice for secretary of energy, at the National Clean Energy Summit this summer.