applying the cdc's building resilience against climate ... · climate risk assessment public...
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Applying the CDC's Building Resilience Against Climate Effects (BRACE) Framework in Massachusetts
Tuesday, October 3, 2014MIT Endicott House, Dedham, MA
Marc A. Nascarella, Ph.D.Director, Environmental Toxicology Program
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Outline
1. Climate Change Health Hazards2. Introduction to the CDC BRACE Framework3. Applying BRACE to Evaluate Public Health Risk4. Available Tools5. Questions
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Climate Change Hazards3
(Source: Nicholas Stern (2006), “Stern Review on the Economics of Climate Change”)
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Climate Change Effects4
(Source: Nicholas Stern (2006), “Stern Review on the Economics of Climate Change”)
What are the Public Health Effects?
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Climate Change Health Effects5
(Source: NIEHS “A Human Health Perspective on Climate Change”, EHP, 2010)
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BRACE Framework6
PURPOSE: Couple climate projections with health data to more effectively anticipate, prepare, and respond to climate sensitive health impacts.
STEP 1: Forecast Climate Impact and Assess Vulnerabilities
STEP 2: Project Disease Burdens from Climate ChangeSTEP 3: Assess Public Health InterventionsSTEP 4: Develop & Implement Climate Adaptation PlanSTEP 5: Evaluate Impact and Improve Framework
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BRACE Framework7
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Assessing the health effects of climate change…where to begin?
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Basic Public Health Risk Assessment
Public health risks are a function of the type of hazard and our exposure to them.
e.g., health hazard such as an air contaminant: STEP 1 ‐ Determine inherent toxicity of the contaminant (e.g., “imminent hazard value”)
STEP 2 ‐ Determine exposure (i.e., what level are people breathing).
Estimate risk based on:
RISK = HAZARD X EXPOSURE
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Climate Risk Assessment
Public health risks of climate change are similar Risks are directly related to specific climate hazards and our exposure to them.
Using the CDC BRACE framework we: Predict climate‐related hazards Predict human vulnerability of exposure Estimate risk based on:
RISK = HAZARD X EXPOSURE
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Risk of Climate Effects11
HAZARDProbabilityMagnitude
EXPOSUREVulnerabilitySusceptibility
RISKDamageValuation
Hazard x Exposure = Risk
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Example: Risk of Flooding
RISK = HAZARD x VULNERABILITY
Risk = Flooding in a Coastal Home Hazard = Sea Level Vulnerability = Elevation of Home
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Predicting Hazards13
1. Current Health EffectsDetermine relationship between suspected hazard (i.e., extreme heat) and population experiencing adverse heath outcomes.
2. Future Health Effects Based on relationship between vulnerable population and number of hot days in the future (i.e., population and temperature in 2030).
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Predicting Hazards: Extreme Heat
RISK = HAZARD x VULNERABILITY
Risk = Acute Heat Injury Requiring Medical ServicesHazard = Days where Temp. > 93ºF Vulnerability = Social Isolation + Age > 65 years old*
*see Health Vulnerability Index; Reid et al. (2012). Environmental Health Perspectives, 120(5), 715-719.
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Massachusetts Weather StationMaximum Temperature Data May-September 2002
Massachusetts Weather Data
*DRAFT* ILLUSTRATION FOR PRESENTATION PURPOSES
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Maximum Temperature in MA
*DRAFT* ILLUSTRATION FOR PRESENTATION PURPOSES
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May – September 2002 (days)
Combine Weather and Health Data
*DRAFT* ILLUSTRATION FOR PRESENTATION PURPOSES
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Massachusetts Health Data
Heat‐related Health Burden in MA Communities• Community level heat‐related hospital admissions, per community, per day
• Population Data• Percent age 65 or older• Percent > 65 and live alone• Percent of homes with no Air Conditioning
• Health Data• Heat related illness• Electrolyte imbalance• Diabetes• Nephritis and nephritic syndrome• Respiratory Disease
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Risk of Heat‐Related Hospital Visits
Estimated 1°‐ 3°F temperature increase by 2030 0 ‐ 162 additional heat‐related hospital visits/town/year
*DRAFT* ILLUSTRATION FOR PRESENTATION PURPOSES
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Planning for Climate Adaptation20
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Capacity to Respond to Climate Adaptation21
“…comprehensive survey aimed at assessing the capacity of local health departments in Massachusetts to respond to the public health impacts of climate change…”
http://www.mass.gov/eohhs/docs/dph/environmental/exposure/climate-change-report-2014.pdf
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MA Environmental Public Health Tracking22
https://matracking.ehs.state.ma.us/#
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Thank you
Questions?
Marc A. Nascarella, Ph.D.Director, Environmental Toxicology Program
617-624-5757 | [email protected]