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Climate Change: The Move to Action(AOSS 480 // NRE 501)
Richard B. Rood734-647-3530
2525 Space Research Building (North Campus)[email protected]
http://aoss.engin.umich.edu./people/rbrood
Winter 2008April 3, 2008
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Class News
• Class Web Site and Wiki
–Climate Change: The Move to Action• Winter 2008 Term
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Next 4 lectures
• April 3: Report from BP / Exxon // Continuity / Public Health and Climate
• April 8: Business and Climate // Discussion
• April 10: Current Issues // Discussion
• April 15: Final Presentations
• April 21: Submission of Final Presentation. (.ppt and .doc) (April 24, absolute latest!)
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Extra Special Seminar
You Can Argue With the Facts:A Political History of Climate Change
Naomi Oreskes
University of California, San DiegoMonday, 7 April 20084:00–5:30 pmBetty Ford Classroom, Weill Hall, Rm 1110
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Seeking Project Happiness
Presentation: Total time for presentation and questions is 30 minutes. Aim for presentation of 20 minutes.
My goal, here, is something like a real world experience. Therefore, first get the presentation “right.”
Paper: There should be an accompanying narrative to the presentation. This should include references.
Minimally: Narrative is description of the presentation.Target: Narrative in the spirit of executive summary, or “white paper” that the receiver of the presentation can take away and “carry forward.” Needs Abstract. 10 pages is a good target. If it is longer than 10 pages needs an Executive Summary. (Due April 21, Latest April 24)
If you want to write more it is great! I’ve had as high as 60 pages by groups who really did plan, and did, take them forward. You should feel like you have done a good job, in the time that you have.
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Readings on Local Servers
• Assigned– WHO: Climate Change and Public Health– McMichael: Analysis of Health Impact, Inequality, and
Health Sector
• Of Interest– Meehl and Tebaldi: Climate Change and Heat Waves– Watson: Overview of Science, Policy, Public Health,
etc.
• Foundational Reading– McKinsey: Climate Change Special Initiative
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Outline of Lecture
• Projects
• Revisit fingerprinting and attribution– Questions
• Public health and climate change: A paradigm problem– Heatwaves
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Fingerprinting
The Basic Idea:
Postulate that climate changes for both “natural” and “anthropogenic” components.
Climate measurements contain both components of change.
Model forcing can be written with separate natural and anthropogenic forcing.
Model simulation with natural forcing is used as a proxy for the natural climate.
Is the observed climate significantly different from the proxy natural climate?
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Fingerprinting
The Basic Idea:
Is the observed climate significantly different from the proxy natural climate?
And is the observed climate statistically the same as the model simulated natural plus anthropogenic forcing?
AND
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Human-caused fingerprints have been identified in many different aspects of the climate system
60S45S30S15S015N30N45N60N 850
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Tropospheric temperatures
Tropopause height
Stratospheric temperaturesSurface specific humidity
Ocean temperatures
Zonal-mean rainfall Near-surface temperature
Sea-level pressure
Water vapor over oceans
Continental runoff
Atmospheric temperature
Section 2: Studying the Causes of Climate Change (From Ben Santer)
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Climate Change and Public Health
• Public Health, esp. heatwaves, will be used as an example to show the elements of a real problem and its relation to climate change.
• How does it relate to mitigation, adaptation?– policy– law– etc.
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Climate Change and Public Health
• Acknowledgement and thanks to – Marie S. O’Neill (Michigan)– Sabrina McCormick (Pennsylvania)
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Pathways by Which ClimatePathways by Which ClimateChange Affects HealthChange Affects Health
WHO: Climate Change and Public Health
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Health Impacts of Climate Change
• Increased heat waves and shifts in urban air quality
• Vector born diseases• Range and seasonality of infectious diseases• Rising sea levels and extreme weather events =
dislocation, environmental refugees = global security issue
• Threatened food supply, release of toxins into environment
• Decrease in water quality
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Vector Born Disease
• Dengue, malaria, west nile virus, others
• Differential exposure on a global level
• Some unexpected by products - spraying may cause chronic disease, drug resistance
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Extreme Weather Events
• Injuries and death
• Long term psychological problems
• Increased infectious disease
• Contaminated water supplies
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Quantifying and forecasting climate change public health impacts
• Colder climates, e.g., Netherlands, may benefit
• Hotter climates may have more effects with projected rise of 1.4-5.8o C
• Overall expected impact: increased weather-related deaths
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Useful way to think about impact and adaptation
GOOD
BAD
Temperature(other environmental parameter)
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For many things: living things and ecosystems
• There is an optimal range of an environmental parameter, e.g. temperature or moisture.– Above or below this range risk increases
• The function looks like a parabola– May be skewed
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Skewed towards hot being dangerous
GOOD
BAD
Temperature(other environmental parameter)
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Skewed towards cold being dangerous
GOOD
BAD
Temperature(other environmental parameter)
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Analysis
• You would analyze this impact by:
)(
)(
etemperatur
impact
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Heatwaves
• Public health experts count heatwaves as the most consequential environmental health risk.– examples are Chicago Heat Wave 1995,
European Heat Wave 2003
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What is a heatwave?
• Not so easy to define, because we have now brought in the human dimension.– Not the same in Houston and Chicago
• Extreme high heat?
• Persistent high heat?
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Humans and heat
• Environmental heat exposure
• Exercise induced heat
• Ability to cool
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An observation
• Extreme heat and exercise– greater than 105 is bad!
• Persistent heat combined with environmental heat exposure and ability to cool– strongly dependent on acclimation– persistent night time minimum temperatures
are high– this has been the most deadly
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Heat Waves in Future
Meehl and Tebaldi, Science, 2004
Observed
Modeled
Predicted change in the future
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Heatwaves in future
• More frequent
• More intense
• Greater duration
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The heatwave problem
• This problem already exists (short term).
• Climate change will amplify it.
• Mitigation of greenhouse gases will have only indirect effect (long term)
• What are the most effective responses?
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• Biomedical– underlying disease (CVD, diabetes), co-
exposures, genetics, nutrition, medication use
• Socioeconomic position– individual traits, neighborhood features
• Geography – Topography and settlement patterns, housing,
air conditioning access, acclimatization to prevailing temperature conditions
Levels of vulnerability to extreme temperature
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New work in spatial domain..by Glenn MacGregor and others
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Surface UHI
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Pop > 85Long-term limiting illnessLiving in a flatLiving in medical/care institutionsDeprivation
Spatial variation of heat sensitivity
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High heat sensitivity mapped over surface temperature
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Convergence of Surface temperature hotspots and areas of high sensitivity
Is this pattern of joint occurrence a good predictor of the spatialVariation of mortality?
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Insights from sociology/geography
• 1995 Chicago heat wave: neighborhood influences at small scale
• Population stability, social structure more predictive than raceEric Klinenberg (2002) Heat wave: A social autopsy of
disaster
• St. Louis: spatial features (heat island, concentrated poverty) determined risk
Smoyer-Tomic, K, Social Science & Medicine, 1998
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Social Networks & Illness
Social network measures:
Marriage, contact with friends and family, church membership and formal/ informal memberships
9 year prospective study
Berkman and Syme in
House et al 1988.
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There are Adaptation Measures
• Federal versus city-level
• Existing:– Heat warning systems– Emergency management– Air conditioning
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Health outcome
Legislative Technical Edu-cational
Cultural and Behavioural
Thermal Building guidelines
Housing, public buildings, urban planning to reduce heat island effects, air conditioning
Early warningsystems
Clothing, siesta
Vector-bornediseases
Vector control, Vaccination, impregnated bednets. Sustainable surveillance, prevention and control programs
Health education
Water Storage practices
Water borne diseases
Watershed protection lawsWater quality regulation
Genetic/molecular screening of pathogens. Improved water treatment (e.g., filters). Improved sanitation (e.g., latrines)
Boil water alerts
Washing hands and other hygiene behavior. Use of pit latrines
Adaptation Measures
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We keep arriving at levels of granularity
TEMPORAL
NEAR-TERM LONG-TERM
SPATIAL
LOCAL
GLOBAL
WEALTH
Small scales inform large scales.Large scales inform small scales.
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Lessons from heat waves
• Existing problem with existing system to address the problem– Some good, some bad
• Strongly dependent on extreme events, not the average– Hence want to know how extreme events will change
• Not clearly and distinctly addressed by efforts to mitigate greenhouse gas emissions– Motivator for “Kyoto like” policy?
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Lessons from heat waves
• Strongest levers for addressing the problem are– Societal capability (social integration,
structure, communications)– Environmental warnings and alerts – Education (first responders, general
public, ....)– Engineering (air conditioners, green
spaces, ...)
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Lessons from heat waves
• Policy focused specifically at heat waves– local adaptation– mitigation of heat in built environments.
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Where do Impacts sit in relation to policy
• Heat waves have been used as an example.