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Loaded Dice and Human Health: Measuring the Impacts of Climate Change
›In a new article in the Proceedings of the National Academy of Sciences (PNAS), “Insights From Past Millennia Into Climatic Impacts on Human Health and Survival,” Anthony McMichael compares scientific literature that reconstructs past climates with epidemiological research and comes away with more than a dozen examples of the influence of climate on human health and survival. “Risks to health [as a result of climatic change] are neither widely nor fully recognized,” McMichael writes, but “weather extremes and climatic impacts on food yields, fresh water, infectious diseases, conflict, and displacement” have led to human suffering across the centuries. Some of the literature reviewed, for instance, links the Younger Dryas (a several centuries long period of cooling) to hunger in the Nile Valley between 11,000 and 12,000 years ago, climatic shifts that expanded the range of disease carrying rats and fleas to the “Black Death” during the mid-1400s, and unusually strong El Niño events to a series of late Victorian-era droughts during the late-1800s.
“Climate Variability and Climate Change: The New Climate Dice,” a working paper from James Hansen, Makiko Sato, and Reto Ruedy recently submitted to PNAS, uses surface air temperature analysis from the Goddard Institute for Space Studies to examine the impact of global warming on the frequency of extreme weather events. Using measurements from 1951 to 1980 as a baseline, the study finds, first, that the planet has warmed by around half of a degree Celsius since the reference period, and second, that the global area affected by “extreme anomalies” (exceeding three standard deviations from the mean climate) has increased by a factor greater than 10. Affecting approximately 10 percent of global land surface in the last several years, these anomalies, such as the droughts and heat waves observed in Texas in 2011, Moscow in 2010, and France in 2003, “almost certainly would not have occurred in the absence of the global warming,” according to the authors.
The study uses this new evidence about the impact of climate change to update the concept of climate change as a “loading of the climate dice.” Where, the “climate of 1951-1980 [is represented] by colored dice with two sides red for ‘hot,’ two side blue for ‘cold,’ and two sides white for near average temperature,” and the dice themselves represent the chance of observing variations on mean temperature. Under this metaphor, today’s climate is best approximated by a dice with four sides red, one blue, and one white, according to the study.
As for the future, the data suggest that with just one full degree of warming, anomalies three deviations beyond the mean will be the norm, and five deviations beyond the mean will become more likely (the latest IPCC projections suggest between 1.8 and 4.0 degrees Celsius are likely). In essence, the red side of the die are not only multiplying, but becoming much more extreme. To put this into scale, the Moscow 2010 heat wave, an event that exceeded the three deviations mark, coincided with a doubling of the death rate in the Russian capital. -
Karen Newman: Population and Sustainable Development Links Are Complex, Controversial, and Critical
›April 23, 2012 // By Kate Diamond“The one child family norm in China has fixed the global imagination around population to be around doing something which constricts people’s and women’s choices, rather than expands women’s possibilities to take control of their lives,” said Karen Newman, the coordinator for the UK-based Population and Sustainability Network. But contemporary population programs are about educating people on and providing access to voluntary reproductive, sexual, and maternal health services.
Newman spoke to ECSP, during the Planet Under Pressure conference this year, about family planning efforts and the connection between population dynamics and the environment.
“You have what I would describe as a sort of kaleidoscope of complexity” between climate change and population dynamics – not just growth, said Newman, but urbanization and migration.
For example, China recently overtook the United States as the world’s largest emitter of carbon, and although China has 1.3 billion people compared to the United States’ 310 million, population can hardly be credited as the most important driver for the country’s emissions. “How fair is it [to credit population growth] without in the same nanosecond saying, ‘but most of the carbon that was emitted in China was to manufacture the goods that will of course be consumed in the West?” said Newman.
“It makes it more difficult to say in a sound bite that ‘OK, population and sustainable development, it’s the same conversation,’ which I believe it to be.”
The Population and Sustainability Network, working through the Population and Climate Change Alliance, collaborates with international organizations from North America, Europe, Ethiopia, and Madagascar to support on-the-ground groups working on integrated population, health, and environment programming. These programs address environmental issues, like marine conservation and deforestation, while also providing reproductive health services, including different methods of contraception, diagnosis and treatment of sexually-transmitted diseases, antenatal and postnatal care, and emergency obstetric care.
“As a result of people wanting to place a distance between those coercive family planning programs in the ‘60s and the way that we do reproductive health now…because it’s such a large package, there is a sense that…this reproductive health thing is too much, we can’t really get ahold of this,” said Newman.
“What I think we need to do is keep people focused on the fact that these are women’s rights,” she said. “But we at the same time have to say ‘this is relevant if you care about sustainable development and the world’s non-renewable resources.’”
Sources: United Nations Population Division. -
Andrew Freedman, Climate Central
Senate Hearing Focuses on Threat of Sea Level Rise
›April 21, 2012 // By Wilson Center StaffThe original version of this article, by Andrew Freedman, appeared on Climate Central.
Sea level rise poses an increasingly grave threat to coastal energy facilities and communities during the course of the next several decades, with some impacts already evident, according to testimony delivered Thursday before a rare Senate hearing on climate science.
The hearing, held by the Senate Energy and Natural Resources Committee, focused on the challenges posed by sea level rise, which is one of the most visible manifestations of a warming planet.
“Sea level rise takes the current level of vulnerability and multiplies it,” said Committee Chairman Jeff Bingaman (D-N.M.). “When sea levels rise, the storm surge associated with extreme storms gets even worse, and even an average storm can have above-average consequences.”
Although Chairman Bingaman said he hoped the hearing would help restart “a national conversation” on climate change, the hearing instead may have served to highlight the continuing partisan divide on global climate change. While there were five Democrats in attendance, just one Republican – ranking member Lisa Murkowski (R-AK) – participated in the hearing, a fact not lost on Minnesota Democrat Al Franken, who called climate change the proverbial “elephant in the room.”
Continue reading on Climate Central.
Sources: U.S. Senate Energy and Natural Resources Committee.
Image Credit: Climate Central. -
In Building Resilience for a Changing World, Reproductive Health Is Key
›April 20, 2012 // By Laurie MazurChange is a constant in human (and natural) history. But today, we have entered an era in which the pace, scale, and impact of change may surpass anything our species has previously confronted.
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‘Earth Focus’ Talks to PAI About Bringing Out Women’s Voices on Climate Change
›“We have got to build an increased desire for [and] interest in what happens outside of the United States,” said Suzanne Ehlers, CEO of Population Action International (PAI). She was joined by Vice President of Research, Roger-Mark De Souza, in an episode of Link TV’s Earth Focus, “Women and the Changing Environment,” to discuss the interconnections between women’s reproductive health and climate change.
The episode, built around PAI’s Weathering Change documentary, draws together footage from Ethiopia, Peru, and Nepal to construct messages about the role that reproductive health services can play in responding to the burden that climate change places upon women in the developing world.
“Women are at the forefront of climate change impacts [and] they are disproportionately affected by the negative impacts,” said De Souza. Empowering women by increasing access to voluntary family planning services that allow them to make choices about the timing and the spacing of their births is a way to help ensure that women have the resilience required to react to climate impacts, he continued.
“I want the American people to get out of their borders more often,” said Ehlers. “The U.S. is an unbelievable global leader on reproductive health,” but fluctuations in funding due to domestic politics have sometimes “forced closures of clinics throughout the world.” By listening to those voices that are too often marginalized in international decision making, especially women, we can build a desire for international engagement, she suggests.
“It’s got to be something that the American people see as development…how it links to diplomacy and it absolutely supports defense – that those three D’s are interchangeable,” she said. -
Megacities, Global Security, and the Map of the Future
›“We’re in an urban century, there is no doubt,” said Peter H. Liotta, visiting scholar at the U.S. Military Academy West Point and co-author of The Real Population Bomb: Megacities, Global Security, and the Map of the Future, during a March 20 event at the Wilson Center. Liotta’s book focuses on the geopolitical impacts of poorly managed urbanization on the most vulnerable as well as the security issues such urbanization might create. He was joined by Jaana Remes of the McKinsey Global Institute, who painted a more promising picture of a globally rising, economically prosperous urban middle class, and Stimson Center visiting fellow Peter Engelke, who grappled with the contradictions between these alternative urban realities. [Video Below]
“Urbanization is key to economic development, but it has been, is now, and will continue to be into the future beset by a very large shadow side, wherein the marginalized face grinding poverty, squalor, and despair,” explained Engelke.
Although Liotta and Remes laid out very different “maps of the future,” Engelke suggested three commonalities. First, they both highlight the “unprecedented scale and speed of global change.” Second, they acknowledge that “a global demographic shift is well underway, and has been for some time.” And third, they accept that we have yet to fully integrate cities into the physical and mental maps by which we navigate the world, he said. Despite the economic dynamism of cities, “we live in a world that, I submit, has not yet grasped this reality even in conceptual terms, much less political and policy ones.”
The City as a Source of Vulnerability
People come to megacities “because there’s a chance,” said Liotta. “It looks like a nightmare to us, but people come because they’re waiting for a future.” This chance, however, is often slim, according to Liotta.
The sheer scale of modern urbanization (approximately 200,000 people move every day from rural to urban areas) produces myriad sources of vulnerability for the poorest and most marginalized, said Liotta. “World population growth will occur in the poorest, youngest, and often heavily Muslim states, which lack education, capital, and employment. And for the first time in history the world will be primarily urbanized, with most megacities in the poor states where you don’t have policing, sanitation, and health care.”
This urban shift concentrates young populations presumed to be unstable, exacerbates the risk of disease and climate change, and increases the threat of declining resource availability and food production, Liotta said. In states where “the lights are out” – that is, where urbanization is not met with sufficient economic development – our new urban century may feature significant security challenges, he argued. “Every single security problem we have today, and in the future – whether it’s human security, environmental security, or national security – is [in] the places where the lights are out.”
In The Real Population Bomb, Liotta links these sorts of security issues to what he terms “entangled vulnerability scenarios,” such as scarcity of water for drinking and irrigation, outbreak and rapid spread of disease, or lack of sufficient warning systems for natural disasters or environmental impacts. These scenarios, he argues, deserve a greater showing next to the traditional focus on hard security “threats.”
Fertility rates are generally declining, which will eventually dissipate the youth bulges being experienced by many countries, but the challenge is how to “manage that glide path,” said Liotta. It is about “doing it well collectively, because we are not thinking collectively well about how to do this and places in the world are in serious trouble.”
The City as a Center of Growth
Jaana Remes presented both a broader scale of analysis and a more positive outlook. Urbanization is “the most powerful positive economic force in today’s environment,” she asserted, drawing on the McKinsey Global Institute report, Urban World: Mapping the Economic Power of Cities.
Compared to the historical experiences of the Western world, change in the most rapidly urbanizing of today’s developing states is occurring at “100 times the scale, in one tenth of the time,” said Remes. This change is fundamentally shifting the economic profiles of states such as India and China, which are projected to account for approximately one third of global GDP by 2050.
This growth in economic prominence can be accounted for by the rise of urban populations of middle class consumers not just in megacities, but also in the rapidly growing “middleweight” cities (from 200,000 to 10 million people) explained Remes. The path that these cities take will be “very significant for…how our world is going to look like in the next few decades,” she said. They are where “the lion’s share of global investment is going to be made.”
Engaging Global Urbanization
“That we are seeing cities rise in their profile is nothing new in history,” said Remes, “in fact you can argue that cities are actually some of the longest-lasting assets in the world.” Today, 600 urban centers generate more than 60 percent of global GDP; 400 of these are in emerging markets. So, “even though the scale of the change we expect to see is very dramatic, from the cities perspective, it is probably going to be more evolution than revolution.”
Taking advantage of this growth will require some significant global re-posturing. In terms of commercial diplomacy for instance, most nations continue to distribute their people more according to the “geopolitical power of the 20th century than the economic opportunity of the 21st,” said Remes. She points out, for example, that the city of Wuhan in China is expected to generate 10 times the GDP growth of Auckland, New Zealand, yet the number of foreign service officials stationed in each city is in the opposite proportion.
Policymakers looking to adapt should also look more closely at opportunities to re-develop existing, or “brownfield,” infrastructure. The challenge of accommodating the tremendous pace of urbanization may be great, she said, but “we have not yet seen one piece of infrastructure where you can’t make substantial improvements.”
Summing up the need to work on what he argued has been a shortfall in policy engagement, Engelke concluded that, “we are indeed quite a ways from acknowledging the enormous challenges, but also the opportunities, that global urbanization presents to us.”
Event ResourcesSources: UN Population Division.
Photo Credit: David Hawxhurst/Wilson Center. -
‘Green Prophet’ Interviews Geoff Dabelko on Water Security in the Middle East
›April 18, 2012 // By Schuyler NullTafline Laylin, managing editor of the Green Prophet blog, recently interviewed ECSP Director Geoff Dabelko about the just-released U.S. intelligence assessment on global water security and what it says about the Middle East.
The conversation touched on regional water scarcity, Palestinian-Israeli water tensions, and the role of the international community.
“We put a lot of faith in the past helping us understand the future and it rests at the center of much of the way we analyze things,” said Dabelko. “But at the same time, we also, especially in the natural world, have established patterns of thresholds and tipping points and sudden changes.”
We’ve excerpted the first few questions below; read the full interview on Green Prophet:Green Prophet: So, for context, can you say a little bit about the National Intelligence report and why it was compiled?
Continue reading on Green Prophet.
Geoff Dabelko: The water and security assessment from the National Intelligence Council was done at the request of Secretary of State Hillary Clinton. The National Intelligence Council has a strong history of looking at long term trends in the environmental, technological, demographic realms and working to understand how trends in these areas are and could be part of larger economic, political, and social dynamics that may pose national security issues for the United States.
Green Prophet: There were seven river basins of particular concern, of which four are located in the MENA region: the Euphrates, Jordan, Nile, and the Tigris. Why do you think these are of particular importance?
Geoff Dabelko: I do not explicitly know the criteria for their selection of the seven basins. But I think these four, like the other three, have some common characteristics. They are basins where the rivers are shared by two or more countries/territories that are heavily dependent on the waters; that have relations among the states that include uncertain, tense, or even overtly hostile relationships; that are now and/or likely to experience big growth in demand for the water resource based on both population growth and consumption growth, that at the same time there is concern that climate change will at least increase variability, timing, and or quantity of that water (both scarcity and abundance i.e. floods).
And then the report focuses on the institutional river basin arrangements and differentiates among their assessed capacities for addressing these current and future stresses. That diversity aside, it is fair to say that the transboundary water institutions remain a priority yet a challenge for addressing the multiple dimensions of the water relationship. I say “multiple” given all the different uses water performs in most of these settings (transport, irrigation, hydropower, culture, industrial, household, etc).
Photo Credit: “Umm Qais – Sunset,” courtesy of flickr user Magh. -
Georgina Mace on Planetary Stewardship in a Globalized Age: Risks, Obstacles, and Opportunities
›April 18, 2012 // By Stuart Kent“The goal, ultimately, is just to manage our world better,” to have an “integrated system for the environment that is driven by what local communities want and need,” said Professor Georgina Mace, director of the NERC Centre for Population Biology at Imperial College London. Mace spoke to ECSP on the sidelines of the 2012 Planet Under Pressure conference.
The environmental challenges of humanity are “really twofold,” she said. First, “human societies have grown up at what we now call the local scale…traditionally using the area in which they live.” Communities have always exerted pressures on their local environment but population growth “means those pressures on local landscapes are much greater than they use to be,” said Mace. “We can’t do everything all in the same place,” without the needs of different groups sometimes conflicting.
Second, “there are connections between societies that are sometimes good but quite often they’re damaging.” For example, the increasingly globalized nature of how we utilize natural resources means that “overuse by one community may affect local people in ways that they have no way of responding to.”
Taking apart the first of these challenges, Mace explained that “the population growth issue is really a population growth and demographic change [issue].” In places with mature age structures, such as North America, Europe, Russia, South Korea, and Japan, “the concern is about the number of old people dependent on a reducing number of producers in their society,” while in many poorer regions of the globe the concern is about the “many young people who still have to go through their reproductive years.”
This latter case “looks a horrible problem from the environment point of view,” said Mace, because the areas growing fastest are areas that are “already overused in many ways.” If countries “don’t worry too much about international migration [and] we’re able to accommodate that,” this “demographic divide” could actually be helpful, as countries with growing populations could provide a young, energetic workforce to those that are aging.
Mace made policy recommendations on different scales, from the local to the planetary. At the local level she encouraged making sure that climate interventions “are actually in concert with what’s going on in the environment.” “Let’s take advantage of ecological resilience, biological adaptation – all the things that nature has provided us with that give us mechanisms for coping,” she said.
On a broader scale, she recommended intervening to counteract the “damaging drivers of environmental change,” by using geoengineering and better land use planning, “which is essentially gardening the planet.”
“Both of those offer solutions that are actually incredibly efficient. They also have costs, risks, and obstacles to do with governance, to do with different people being winners and losers, and to do with the fact that we tend to organize our world around nation states and these solutions mostly transcend international boundaries.”
“That’s a major obstacle,” Mace said, but in the end we need “to have a fully integrated planning system that is not top down but has an overall strategy that seeks to optimize all the things that people want and allows a way for local communities to connect.”
“I think that’s the big challenge for us – how to get there.”
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