Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists develop new measure of 'socioclimactic' risk

12.12.2007
New analysis 'highly relevant' for UN Bali negotiations

As the United Nations climate negotiations proceed in Bali, Indonesia, researchers have taken a first step toward quantifying the "socioclimatic" exposure of different countries to future climate change.

The research team from Purdue University and the Abdus Salam International Centre for Theoretical Physics in Trieste, Italy, found that China, India and the United States - major greenhouse gas-emitting nations that are currently unbound by the Kyoto treaty - face substantial exposure relative to other nations, but that every area of the world faces high exposure in at least one category.

"Climate negotiations have become increasingly concerned not only with who is responsible for climate change, but also who is likely to suffer the most damage," said Noah Diffenbaugh, the Purdue assistant professor of earth and atmospheric sciences who led the study. "Our analysis provides quantitative information to support international negotiations such as those that are taking place in Bali this week. By integrating state-of-the-art global climate model experiments with socioeconomic indicators of poverty, wealth and population, we create a unique measure of 'socioclimatic' risk for each nation."

Filippo Giorgi, vice-chair of Working Group I of the Intergovernmental Panel on Climate Change and head of the Abdus Salam International Center of Theoretical Physics (ICTP) Earth System Physics section, initiated the research and worked closely on the analysis.

"This study goes beyond the physical aspects of climate change - such as increased temperatures, sea-level rise and changes in precipitation patterns - and looks at the interaction of these physical changes with various socioeconomic factors throughout the world," Giorgi said. "A key message is that there are no winners and losers with business-as-usual climate change. Countries in all regions of the world face different - but high - potential exposure to socioclimatic stressors in the 21st century. We hope this message will be heard in the Bali negotiations, as the Nobel Peace Prize ceremony highlights the importance of effective and immediate response to the climate change crisis."

The research will be published online this week in the Proceedings of the National Academy of Sciences.

Leigh Raymond, associate director of Purdue's Climate Change Research Center and co-author of the study, said different nations face different exposures to climate change depending on their socioeconomic dimensions.

"Climate change is only half of the story," said Raymond, who also is an associate professor of political science at Purdue. "We need to consider how different societies are threatened by these physical changes in unique ways. Impoverished areas have fewer resources to deal with environmental stress, while wealthy areas have a greater amount of infrastructure that could be lost, and areas with larger populations have more lives at stake."

Michael Mastrandrea, a research associate at the Center for Environmental Science and Policy at Stanford University and member of the Intergovernmental Panel on Climate Change, said this combination of climatic and socioeconomic indicators provides a new method to assess the risks of 21st century climate change and how they vary across nations.

"As this work is developed further, it has the potential to be informative to the international climate policy debate," he said. "The severity of future climate impacts is very sensitive to the pathway of socioeconomic development. This paper proposes an interesting basis from which to quantify the broad implications of concurrent changes in climate and society."

Raymond is currently attending the U.N. conference on climate change in Bali, where he is participating as an official observer of the negotiations.

"Our study is an important first step to get people thinking about the issues from this new perspective," he said. "Of course, famine is a far more serious risk than property damage. But all of these parameters are relevant to policy decisions, and it seems clear that more sophisticated estimates of national exposures to socioclimatic risk will be highly relevant for negotiations of any future climate change agreement."

Regionally, the most exposed nations are China, Bangladesh and Myanmar in Asia; western Sahel and southwestern nations in Africa; Brazil in South America; the eastern United States in North America; and the Mediterranean nations (including France, Italy and Spain), Russia and Scandinavia in Europe.

The study found that the climatic and socioeconomic variables together determine the international variations in socioclimatic risk.

"Patterns emerge that you wouldn't recognize from just looking at either climatic or socioeconomic conditions," Diffenbaugh said. "For example, China has a relatively moderate expected climate change. However, when you combine that with the fact that it has the second largest economy in the world, a substantial poverty rate and a large population, it creates one of the largest combined exposures on the planet. We see similar effects in other parts of the world, including India and the United States, which also have relatively moderate expected climate change. So it's where the socioeconomic and climatic variables intersect that is the key."

He added that the study does not address the absolute degree of impact or risk.

"This study illustrates exposure of one nation relative to another," Diffenbaugh said. "Thus, it is important to note that a country low on the relative scale could still face substantial risk."

The climate models used the A1B scenario, which is a standard greenhouse gas emissions scenario used by the IPCC. However, the authors calculated the exposures based on each degree of global warming, meaning that similar results could be expected from other scenarios, said Xunqiang Bi, a researcher at the ICTP and co-author of the paper.

"Our study leads toward providing integrated, country-based information to aid the development of adaptation and mitigation policies at the national and regional level," Giorgi said. "Much additional work has to be done to account for more comprehensive climatic and socioeconomic information. This is an extremely exciting and innovative area of future research."

The Purdue Climate Change Research Center is affiliated with Purdue's Discovery Park. The center promotes and organizes research and education on global climate change and studies its impact on agriculture, natural ecosystems and society. It was established in 2004 to support Purdue in research and education on regional scale climate change, its impacts and mitigation, and adaptation strategies. The center serves as a hub for a range of activities beyond scientific research, including teaching, public education and the development of public policy recommendations.

The Abdus Salam International Centre for Theoretical Physics was founded in 1964 by Nobel Laureate Abdus Salam. The center operates under a tripartite agreement among the Italian Government and two U.N. agencies, UNESCO and IAEA. Its mission is to foster advanced studies and research, especially in developing countries. While the name of the center reflects its beginnings, its activities today encompass most areas of physical sciences, including geophysical and environmental sciences.

Elizabeth K. Gardner | EurekAlert!
Further information:
http://www.purdue.edu

More articles from Ecology, The Environment and Conservation:

nachricht How does the loss of species alter ecosystems?
18.05.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

nachricht Excess diesel emissions bring global health & environmental impacts
16.05.2017 | International Institute for Applied Systems Analysis (IIASA)

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

Im Focus: Using graphene to create quantum bits

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.

In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...

Im Focus: Bacteria harness the lotus effect to protect themselves

Biofilms: Researchers find the causes of water-repelling properties

Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...

Im Focus: Hydrogen Bonds Directly Detected for the First Time

For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Researchers from the University of Basel’s Swiss Nanoscience Institute network have reported the results in the journal Science Advances.

Hydrogen is the most common element in the universe and is an integral part of almost all organic compounds. Molecules and sections of macromolecules are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

Innovation 4.0: Shaping a humane fourth industrial revolution

17.05.2017 | Event News

Media accreditation opens for historic year at European Health Forum Gastein

16.05.2017 | Event News

 
Latest News

New approach to revolutionize the production of molecular hydrogen

22.05.2017 | Materials Sciences

Scientists enlist engineered protein to battle the MERS virus

22.05.2017 | Life Sciences

Experts explain origins of topographic relief on Earth, Mars and Titan

22.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>