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Health Impacts of and Responses to Climate Change

Explore the pathways through which climate change affects human health and the various factors that influence its impacts. Learn about the geographic, biological, and socioeconomic factors that determine the magnitude of health risks. Gain insights into the projected increase in extreme weather events, ozone-related deaths, tick abundance, Lyme disease distribution, and temperature-related enteric diseases. Discover the expertise of public health directors in assessing health risks related to climate change.

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Health Impacts of and Responses to Climate Change

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  1. Health Impacts of and Responses to Climate Change Kristie L. Ebi, Ph.D., MPH

  2. Pathways by Which Climate Change May Affect Human Health McMichael et al. 2003

  3. Health Impacts Depend on Multiple Factors • Geographic factors: • Baseline climate • Abundance of natural resources (i.e. soil, fresh water supplies) • Elevation • Biological sensitivity: • Developmental stage • Pre-existing medical conditions and/or acquired factors (i.e. immunity) • Genetic factors • Socioeconomic factors: • May increase likelihood of exposure to harmful agents/high risk residences • Associated with underlying diseases that mediate risk • Affect ability to adapt or respond

  4. Direction and Magnitude of Climate Change Health Impacts IPCC 2007

  5. McGheehin

  6. Extreme Weather

  7. Projected Ozone-Related Deaths, NY Metro Area, 2050s vs 1990s Kinney et al. 2006

  8. Tick abundance at model equilibrium 0 1-46 160-266 434-694 47-90 91-159 267-433 1739-2145 695-1101 1102-1738 Distribution of Lyme Disease, 1991-2000 and 2020 Ogden et al. Int. J. Parasitol. 2005, 2006

  9. Temperature and Enteric Disease RR of Salmonellaincreased by 1.2% per degree above - 10˚C RR of Campylobacter increased by 2.2% (4.5% in Newfoundland) per degree above - 10˚C RR of E. coli increased by 6.0% per degree above - 10˚C Fleury et al. 2006

  10. EDF/George Mason/NACCHO Survey of Public Health Directors Department Has Expertise to Assess Health Risks?

  11. Climate Change Impacts in 2030 under 750 ppm CO2 Scenario (thousands of cases) Ebi 2008

  12. Thank-you Krisebi@essllc.org

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