Showing posts from category environment.
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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. -
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. -
‘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.” -
Neil Adger: Embrace Community Identities To Improve Climate Adaptation
›April 16, 2012 // By Stuart Kent“On an individual basis, people care about things in their back garden and they also care about global icons of climate change…cultural heritage and natural heritage are two really important things that tie people to place and where the impacts of climate change are really going to be felt,” said Neil Adger, professor of environmental economics at the University of East Anglia and the Tyndall Centre for Climate Change Research.
Speaking at the Wilson Center, Adger explained that if policymakers don’t think seriously about the cultural dimensions of climate change adaptation they risk implementing measures that significantly, and negatively, impact people’s sense of community and identity.
“For more than a decade we have been looking at the economic costs, and the infrastructure, and the things that policymakers really focus on whenever they think about the impacts of climate change,” said Adger. In doing so “we realized that that doesn’t necessary motivate people in terms of what they believe the impacts of climate change are.”
Drawing from work on adaption in Australian agriculture, Adger explained that culture can be a barrier to effective adaptation where governments and policymakers fail to engage communities on a cultural basis.
More detailed information is needed to identify what people care about, how people construct perceptions of climate risk, and the best ways to engage people locally.
This is not easy, however. “I think the difficulty of looking at the cultural impacts of climate change is that they are very place specific,” Adger said.
But there is a significant payoff from the investment. “The cultural embedded-ness of our relationship with climate is also potentially a huge motivation for action and for change,” he said. This motivation can extend beyond adaptation to actually encourage people to decarbonize the economy, to mitigate the potential for negative climate change impacts in the first place, and to act as “citizens rather than as consumers.” -
Geoff Dabelko On ‘The Diane Rehm Show’ Discussing Global Water Security
›April 13, 2012 // By Wilson Center StaffECSP Director Geoff Dabelko was recently a guest on The Diane Rehm Show to discuss the just-released U.S. intelligence community assessment of world water security. He was joined by co-panelists retired Maj. Gen. Richard Engel (USAF) of the National Intelligence Council’s Environment and Natural Resources Program (a key figure in preparing the report), Jessica Troell of the International Water Program at the Environmental Law Institute, and Steve Fleischli of the Natural Resources Defense Council.
The Department of State-requested assessment (outlined in more detail, here and here) is a very positive contribution, said Dabelko. It “moves away from the arm-waving, headline-grabbing, water wars frame – the kind of sky-is-falling frame that is intuitively appealing and certainly appealing for politicians and headline writers, but doesn’t really reflect the reality.” He continued:What this report instead does, is recognize that there’s been an awful lot of cooperation around water even in the face of scarcity and that that cooperation in part helps us avoid conflicts, whether they’re violent or political, and that we should invest in those institutions that help us get to cooperation.
Visit the show’s program page to listen to the full segment, or read the transcript here.
It also suggests that it’s inadequate and incorrect to think of water as just a single-sector issue. The report is quite clear in connecting it to energy, connecting it to food, connecting it to health, economic development, agriculture obviously, and so that recognition [in] analysis sounds in some way straightforward, but unfortunately, when we organize our responses, we often respond in sector, and there’s not nearly enough communication and cooperation.
And finally, the report does say that the future may not look like the past, and so while we don’t have evidence of states fighting one another over water – and the judgment of the report is in the next 10 years, we won’t see that – it does hold out the prospect for as we go farther down the line, in terms of higher levels of consumption and higher levels of population, that we need to pay special attention because there’s some particular river basins in parts of the world where, as I said, the future may not look like the past and we have greater concerns for higher levels of conflict.
Sources/Image Credit: The Diane Rehm Show.
