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PUBLIC HEALTH, URBANIZATION, AND CLIMATE CHANGE: The Common Thread of Public Health Emergencies ~. FREDERICK M. BURKLE, JR., MD, MPH, DTM, FAAP, FACEP PROFESSOR & WOODROW WILSON SENIOR PUBLIC POLICY INTERNATIONAL SCHOLAR SENIOR FELLOW & SCIENTIST. PUBLIC HEALTH EMERGENCIES.
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PUBLIC HEALTH, URBANIZATION, AND CLIMATE CHANGE: The Common Thread of Public Health Emergencies ~ FREDERICK M. BURKLE, JR., MD, MPH, DTM, FAAP, FACEP PROFESSOR & WOODROW WILSON SENIOR PUBLIC POLICY INTERNATIONAL SCHOLAR SENIOR FELLOW & SCIENTIST
PUBLIC HEALTH EMERGENCIES • “Disasters that adversely impact the public health system and its protective infrastructure related to water, sanitation, shelter, food, health, & energy”* • …Protective threshold is destroyed, overwhelmed, not recovered or maintained, or denied to a population… • Primarily measured as “indirect & preventable” morbidity & mortality *Burkle, 2008, Institute of Medicine
21st CENTURY: State of Public Health Infrastructure • Globally, public health infrastructure and systems have disappeared, declined, or failed to keep pace with demands. • Deficient dwellings; aged infrastructure • Unavailable infrastructure & capacity to respond in crises/disasters: especially potable water, food, & sanitation • Ecological & environmental changes
UNITED NATIONS INITIALLY PROJECTED THAT HALF OF THE WORLD’S POPULATION WOULD LIVE IN URBAN AREAS BY 2015-17
URBAN POPULATION DOMINANCE OCCURRED IN 2008
RAPID URBANIZATION Public health physical and social protections fall below threshold levels resulting in a public health emergencystatus Determinants: population, population density, capacity of public health infrastructure & system Most evident in megacities of least urbanized continents of Asia and Africa
RAPID URBANIZATION Urbanization rates vary greatly across the world USA & United Kingdom have far higher urbanization rates than China or India But have far slower annual urbanization rates since much less of population is living in rural areas Rapid urbanization is unsustainable
URBANIZATION THRESHOLD Urban role in economic wealth creation for the country depends on continuous production of ecological goods & services from somewhere else An extensive external resource base of goods & services must be available & grow if urbanization grows While this was possible at one time, the resource base sustaining the human population is now in steady decline
MEGACITIES • Cities over 10 Million; density, not population, is most • sensitive indicator (e.g., Port-au-Prince, Haiti) • > Density based on minimum of 2,000 people/sqKm • > Mumbai:30,000/sqKm • Unplanned urbanization in which public health • infrastructure & system installed after urbanization • Primary forces leading to public health emergency: • >Land cover conversion • > Urban topography devoid of forests/parks • > Pollution
POPULATION EXPOSED TO CONFLICT RM Garfield, J Polansky, FM Burkle, Jr LESS DECLARED WARS…BUT MORE PEOPLE EXPOSED TO CONFLICT THAN EVER BEFORE
2000s I. Currently, many populations fleeing from sustained levels of “conflict intensity”in failing post-conflict countries II. Increasing numbers of internally displaced populations (IDPs) migrating because of severe climate-related changes Current patterns of IDP migration are regional rather than international
CHANGE IN MIGRATION TRENDS FROM REFUGEES TO INTERNALLY DISPLACED POPULATIONS (IDPs) Spiegel, et al, LANCET, 2010
INTERNALLY DISPLACED MOVE TO URBAN AREAS IN LEAST DEVELOPED COUNTRIES Spiegel, et al, LANCET, 2010
6% of population are urban • squatters in Developed countries • 78% of population are urban • squatters in the Developing world • “Urban Diseminities” range from 35% to 93% CONTRADICTIONS of GLOBALIZATION
GLOBALIZATION & URBANIZATION* Increasing health inequities & widening gap between ‘have & have not’ populations Produced an “invisible”population: population demographics and access to health are relatively unknown “Health for many has become a major security issue” *Schneider: Global PH & Int Relations, Aus J of International Affairs, 2008 **Burkle: Globalization & Disasters: PH, State Capacity & Political Action J. of International Affairs, 2006
URBAN SLUMS Highest Worldwide Under age 5 Mortality Rates (U5MR) & Infant Mortality Rates (IMR) Urban shanty towns: >900 M vulnerable to cyclones, flooding, & earthquakes > Growing at 25M/year: in disaster prone areas > Mumbai: 1600 new families/day Sanitation ignored; infectious diseases more prevalent *
ENERGY WATER EMERGENCIES OF SCARCITY: WHAT WILL MATTER IN 2015-20? • FOOD Intense “distributional conflicts” & “land grabbing” already occurring by import dependent countries
PUBLIC HEALTH REDEFINED Humanitarian assistance has moved from rural to urban areas Humanitarian community is NOTprepared to protect the urban public health infrastructure…or system Not prepared to handle “emergencies of scarcity”
REDEFINING PUBLIC HEALTH • Disasters keep governments honest by defining the public health & exposing its vulnerabilities (Burkle, 1973) • Global Health: Scarcity (climate change impacts, energy, water, food) now defines the public health of many countries • Current Public Health Solutions: • Reduction in growth rates (empowering women) • Ensuring social protections • Decrease carbon emissions • Populations called upon to identify vulnerabilities…learn how to reduce them (adapt)…redefine resilience • If doesn’t work: Must have strong migration policies in place
GLOBAL PUBLIC HEALTH RESEARCH REDEFINED Must be integrative: inter-disciplinary, inter-sectoral, inter-ministerial Do not leave Global Health research to policy makers & practitioners who are poorly prepared to interpret strengths & weaknesses of integrative research Global health is a ‘composite field’ Maclachlan, Globalization & Health 2009
CONCLUSIONS “Public health emergencies must be seen as the common thread of many inter-related climate & urbanization crises” (Burkle, 2004) Do not assume that non-health decision makers (e.g., engineers, urban planners) understand the impact of urbanization on health Public health must be seen as a strategic & security issue…that deserves an international monitoring system (G20 Global Impact & Vulnerability Act) (Burkle, 1973)