- Research Article
- 10.1289/isee.2014.s-028
Adapting Early Warning Systems to Global Climate Change
- Oct 20, 2014
- ISEE Conference Abstracts
- Kristie L Ebi*
Early warning and response systems use meteorological forecasts to initiate public health interventions to reduce health impacts associated with weather variables, including climate variability. Effective systems are based on reliable meteorological forecasts; robust understanding of the cause- and effect relationships between meteorological factors and health outcome (allowing identification of high risk thresholds); response measures that can be implemented in a timely manner to reduce morbidity and mortality; and institutions and civil society actors with the resources, capacity, knowledge, and political will to undertake the response measures. Because these systems are effective in reducing adverse health impacts, it is widely assumed that such systems also will reduce the impacts of climate change. However, early warning systems are often designed without consideration of climate change. They establish exposure-response relationships and design response measures based on recent conditions and do not consider the implications for the effectiveness of systems of future and different weather and development patterns. Extreme weather and climate events are projected to increase in frequency, intensity, and duration, and may occur at times of the year different from today. Acclimatization, housing, the demographic structure of the population, technology development, and other factors will influence future vulnerability. Therefore, early warning systems should have flexible structures and processes to support modifications as climate and development baselines shift. Engagement with a broad range of stakeholders will facilitate timely adjustments to early warning and response systems to maintain or improve their effectiveness however the climate changes.
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