From Green Right Now Reports
An emerging body of evidence suggests that the changing global climate is already affecting infectious disease transmission patterns. At a symposium today at the 58th annual meeting of the American Society of Tropical Medicine and Hygiene in Washington D.C., experts reported that such changes are expected to have a profound impact on global public health.
“There is concrete evidence that the global climate is changing, and these changes are expected to greatly impact human health as surface temperatures rise, agricultural belts shift, and extreme weather events become more commonplace,” Mary H. Hayden, Ph.D. of the National Center for Atmospheric Research in Boulder, Colo., said in a statement. “Although most scientists agree that climate change is underway, the role it plays in infectious disease transmission is still in contention. The evidence presented today suggests that climate change will exacerbate the challenges of controlling infectious diseases in the developing world.”
Climate change is expected to impact global health through a variety of factors including greater heat stress, air pollution, respiratory disease exacerbation, and changes in the geographic distribution of vector-, food- and water-borne disease.
“The complexity of such influences requires that the next generation of climate and health scientists undergo training to ensure that they can address climate-related public health challenges. Such preparation will be critical as the population of at-risk individuals continues to grow,” said Dr. Hayden, who is a program coordinator of a joint NCAR/US Centers for Disease Control and Prevention postdoctoral fellowship combining public health applications and climate science.
NCAR Director Eric J. Barron, Ph.D., who discussed the potential use of available weather and climate models in health forecasting, noted that “we are moving into the age of ‘decision-making’ with regard to climate change after decades of focusing on reducing uncertainties in attribution and prediction.”
“Health has huge potential and should be first in line for greater investment to improve the decision-making process because of its clear ties to weather and climate,” Dr. Barron said in a statement. “Whereas the medical community has tended to respond in a ‘point-of-service’ manner — reacting to incoming cases with almost no discipline of forecasting — health/climate forecasting has real potential if we can design monitoring algorithms or a robust predictive capability.”
The aim of the symposium, “Changing the Climate: A Data-Driven Discussion About Climate,” was to address the use, utility, and limitations of weather and climate models toward a goal of providing data-driven evidence of the links between weather, climate, specific pathogens and ultimately, human health. The symposium included several evidence-based presentations by speakers from the US Centers Disease Control and Prevention (CDC) and Columbia University’s International Research Institute on the established effects of climate variability/change on specific climate-sensitive diseases such as meningitis, malaria, plague and other vector-borne bacterial pathogens.
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