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Stress Levels of Major Global Aquifers Revealed by Groundwater Footprint Study
›In the “first spatially explicit comparison of groundwater use, availability, and environmental flow for aquifers globally,” a new article in Nature finds that the “size of the global groundwater footprint is currently about 3.5 times the actual area of aquifers.” An aquifer’s footprint is the theoretical size it would need to be to sustainably support use at its current rate, so groundwater footprints being much larger than their corresponding aquifers is a sign of overuse.
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Population Aging: A Demographic and Geographic Overview
›The original version of this article, by Richard Cincotta, appeared on the National Intelligence Council’s Global Trends 2030 Blog. It is the first post in a series on population aging, featuring Jack Goldstone, Richard Jackson, Jennifer Dabbs Sciubba, Ronald Lee, Andrew Mason, Toshi Yoshihara, Elizabeth H Stephen, David Coleman, and Eric Kaufmann.
This series, Population Aging to 2030, begins with an introductory essay aimed at familiarizing readers with some of the demographic and geographic particulars of this phenomenon, and with several key demographic terms. The term most in need of definition is, of course, “population aging.” -
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. -
Responses to JPR Climate and Conflict Special Issue: John O’Loughlin, Andrew M. Linke, Frank Witmer (University of Colorado, Boulder)
›Complexity, in terms of economic, cultural, institutional, and ecological characteristics, weighs heavily on contemporary attempts to unravel the climate change/variability and conflict nexus. The view that local-level complexity can be “controlled away” by technical fixes or adding variables in quantitative analysis does not sit well with many geographers (though some do try to adopt a middle ground position).
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Book Review: ‘Plundered Nations? Successes and Failures in Natural Resource Extraction’
›The principal argument of Plundered Nations? Successes and Failures in Natural Resource Extraction is highlighted by the question mark in the title. In many resource rich countries, natural assets have not led to development. The book advances the hypothesis that “for the depletion of natural assets to be converted into sustained development, a series of decisions has got to be got sufficiently right” (p. 1). That series of decisions is examined in detail through case studies on Cameroon, Chile, Iran, Kazakhstan, Malaysia, Nigeria, Russia, and Zambia, produced by a diverse group of academic and practicing economists under the auspices of the Center for the Study of African Economies and the Oxford Center for the Economics of Resource Rich Countries (OxCarre).
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Jay Ulfelder, Dart-Throwing Chimp
Public-Health Campaigns as Outsized Threats to Authoritarian Rule
›August 17, 2011 // By Wilson Center StaffThe original version of this article, by Jay Ulfelder, appeared on his blog, Dart-Throwing Chimp.
Are certain forms of popular activism more likely to hasten the fall of dictatorships than others? This question occurred to me after reading a recent Washington Post story describing how one Russian woman, Darya Makarova, has turned her own frustration with the poor health care given to her (now dead) young son into a wider campaign that’s has caught Moscow’s eye:Thousands have turned out for her rallies, written letters, signed petitions or joined in Internet forums. Since Maxim’s death in November, she has raised money to reopen a children’s clinic, with an emergency room, in her community. She has shamed the city into buying three new ambulances, with proper equipment. She has launched a nonprofit organization, Health Care for Children, that has national ambitions. Politicians have sought her out. Pavel Astakhov, who holds the newly created title of children’s ombudsman, came from Moscow to see her – and then appointed her his unpaid deputy, giving her more access and clout. Even officials from the sprawling and notoriously indifferent Health Ministry started to pay attention.
I can see why government officials would be nervous about this still-modest and outwardly apolitical campaign. Popular activism around matters of public health and safety seems like it should pose a special challenge to authoritarian regimes, like Russia’s, that stake their right to rule on paternalistic claims about their ability to deliver both social welfare and social protection.
Movements organized around failures of public health and safety are threatening to these regimes because they call out the paternalistic state for failing at its own game. Whatever the form of government involved, one of the modern state’s fundamental roles is to protect its citizens from public health threats. Even when they serve this function poorly, most autocrats claim to be trying, and these campaigns reveal that they are not succeeding.
Continue reading on Dart-Throwing Chimp.
Photo credit: “Your Health rests with…,” courtesy of flickr user okeos. -
Managing Our Forests: Carbon, Climate Change, and Fire
›“We cannot manage our planet if we cannot manage our forests,” said William Sommers, a research professor with the Center for Climate and Society at George Mason University, during a recent event at the Woodrow Wilson Center. The event, which coincided with the International Year of Forests, was the fourth in a series co-sponsored by George Mason University and the Environmental Change and Security Program on “Managing the Planet.” Sandra Brown, director and chief scientist of the Ecosystems Services Unit at Winrock International and David Cleaves, climate change advisor to the chief of the U.S. Forest Service, joined Sommers and moderator Thomas Lovejoy, professor at George Mason, to discuss the impact of climate change, carbon, and fire on the world’s forests. [Video Below]
Fire: A “Critical Element”
“Forests have evolved over Earth’s history,” said Sommers, with fire being a “constant shaper” of this evolution. Humans first used fire as a tool about 400,000 years ago, and around 10,000 years ago, we began using fire for agricultural purposes, which, Sommers said, can be considered the beginning of forest management.
The resulting carbon dioxide (CO2) emissions have been an important consequence of this human intervention, Sommers said. CO2 emissions have an “exceptional persistence” in the atmosphere, which, explained Sommers, “commits us to irreversible warming over the next 1,000 years.”
In order to counteract these warming effects, a replacement for the “business-as-usual” approach is needed, Sommers said. If not, he warned, CO2 concentrations could reach a thousand parts per million by the end of the century: “It has been 30 to 100 million years since Earth experienced that level of atmospheric CO2 concentration, and Earth was extremely warm at that time.”
“Fire remains a critical element of the earth’s system and is highly sensitive to climate change,” said Sommers. The potential feedback relationship between fire and climate change was illustrated in dramatic fashion in the summer of 2010 with the outbreak of wildfires in Russia after the hottest summer temperatures on record.
Time is running short, Sommers warned, to answer the question of whether humans can anticipate and respond to climate change and manage forests in a sustainable manner.
Reducing Emissions & Improving Management
“Logging can be well-planned and well-designed or maybe not so well-planned,” said Brown as she spoke about her research on the logging industry in the tropics. Sustainable forest management in the tropics is still “a bit of the wild west” in some countries, though the situation is improving slightly, she said.
One way to improve management and reduce greenhouse gas emissions would be through the REDD+ (Reducing Emissions from Deforestation and Degradation) program of the United Nations. REDD+ can provide incentives, Brown said, for people to come up with useful innovations and improvements to forest management. But, she warned, “the longer we keep waiting, [the more] forests are diminishing.”
When a tree is felled, Brown said, there is a lot of collateral damage. An estimated one billion metric tons of CO2 are released every year from logging in the tropics of Africa and Latin America, she explained. One-half of these emissions are from the harvesting itself and the other half is from incidental damage and infrastructure, such as from the skid trails and haul roads needed to transport the logs out of the forest.
Therefore, it is important for all possible reduction steps to be taken, Brown said: “Where we have opportunities to produce goods with reducing emissions, we need to take those opportunities. We just can’t keep thinking, ‘That’s too small to worry about.’ If there’s what we call ‘low-hanging fruit,’ why not go for it?”
In order to reduce emissions and improve management, Brown suggested reducing avoidable waste by trimming more off of felled logs to increase volume, creating a management plan wherein felled logs are accurately mapped and skid trails are better planned, and using silvicultural treatments to speed the forest’s recovery.
Integrating Climate Change Into Risk Management
The job of the U.S. Forest Service has always been that of a “stress manager,” said Cleaves. Climate change is likely to ramp up existing stressors, such as drought and wildfires, which is why it is necessary for the Forest Service to integrate climate change adaptation techniques into the existing stress manager role. “We feel that there is no such thing as a separate climate change program,” he said.
Many difficult choices will have to be made to address climate change, Cleaves said: “We can’t afford the scale of the problem; we can’t afford to solve it all. We need to be able to prioritize.” These choices will have to be based on economic, social, and ecological values in order to “manage risks around the full sweep of the elements of sustainability,” he said.
The country’s forests are changing and we have already seen whole system change, Cleaves explained. For example, climate change has altered snow cover patterns leading to the decline of over half a million acres of yellow-cedar forest in Alaska.
Other threats facing U.S. forests include disease (such as white pine blister rust), increased variability of fires, increased housing growth near forested areas, and the possibility of forests turning from carbon sinks into carbon sources. That is to say, as forests are destroyed through fires, clearing, or disease, they release back into the environment the carbon they have absorbed.
Risk must be integrated into the decision-making process of the agency, and to this end the Forest Service has created the National Roadmap for Responding to Climate Change. But in order to meet these climate change challenges, Cleaves said, “we have to get moving.”
Sources: U.S. Fish and Wildlife Service, USA Today.
Photo Credit: “Michigan,” courtesy of flickr user The U.S. Army. -
What “Lost” Cultures Can Contribute to Management of Our Planet
›“Climate change is not a technical problem for indigenous people – it’s a psychological and spiritual problem,” said Wade Davis, explorer-in-residence at National Geographic, at a recent Wilson Center event, the third in a series co-sponsored by George Mason University and the Environmental Change and Security Program. Indigenous people are “being driven out of existence,” as climate change alters landscapes and weather patterns that they have carefully adapted to over centuries, he said. These people are not “failed attempts at being modern…they are unique answers to the fundamental question, ‘what does it mean to be human and alive?’” he said. “It behooves us to pay attention to how they choose to live upon the earth.” [Video Below]
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