Energy and Health Kirk R. Smith, CLA Chapter 4 UC Berkeley.
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Transcript of Energy and Health Kirk R. Smith, CLA Chapter 4 UC Berkeley.
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Energy and HealthKirk R. Smith, CLA Chapter 4UC Berkeley
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Chapter 4: Lead Authors• Kalpana Balakrishnan (Sri Ramachandra University, India)• Colin Butler (Australian National University)• Zoe Chafe (University of California, Berkeley, USA)• Ian Fairlie (Consultant on Radiation in the Environment, UK)• Patrick Kinney (Columbia University, USA)• Tord Kjellstrom (Umea University, Sweden)• Denise L. Mauzerall (Princeton University, USA)• Thomas McKone (Lawrence Berkeley National Laboratory, USA)• Anthony McMichael (Australian National University)• Mycle Schneider (Consultant on Energy and Nuclear Policy,
France)• Kirk R. Smith (University of California, Berkeley, USA)• Paul Wilkinson (London School of Hygiene and Tropical Medicine,
UK)
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Framing of the Analysis
• Not on the many important health benefits of access to reliable clean energy services
• Focus on how energy systems affect the distribution of global health in major ways.
• Not the reverse, i.e, the ways relative health impacts affect the distribution of energy systems
• Secondary focus on the ways that mitigating climate change through changes in energy systems might achieve important health improvements – co-benefits.
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Framing of the Analysis, cont
• Chapter 4 focuses on attributable risk, i.e., the amount of ill-health currently due to energy systems.
• The avoidable risk, i.e., the amount of ill-health that could be avoided by changes in energy systems, is mostly found in Ch 17 – Pathways
• Use Environmental Risk Transition as an organizational mechanism
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The Environmental Risk Transition
Household, e.g. poor sanitation
Community, e.g. Urban Pollution
Increasing Wealth
Shifting Environmental Burdens
Severity
Local
Immediate Delayed
Global
Global, e.g.greenhouse-gas emissions
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Environmental Risk Transition• Household, e.g., biomass fuels• Workplace, e.g., coal mining• Community, e.g., urban air pollution• Regional, e.g., widespread tropospheric
ozone• Global, e.g., climate change• Special topics
– Energy efficiency in buildings– Nuclear fuel cycle – routine operation– Emerging technologies
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© GEA 2012www.globalenergyassessment.orgChapter 4, #7
Intake fractions for typical sources of air pollution
(g/t emitted)
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Bottom Lines• Poorly managed energy systems are
currently responsible for a significant portion of the global burden of disease – perhaps 6-7 million premature deaths annually – approaching 10% of the global burden of disease
• Air pollution from incomplete combustion of fuels is the major reason, but there are other interactions as well.
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Leading cause of disease burden in 2010 by country
Population Cooking with Solid Fuels in 2010 (%)
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05
00
1,0
00
1,5
00
2,0
00
Po
pu
latio
n (
mill
ion
s)
AfricaAmericas
Eastern MediterraneanEurope
South East Asia Western Pacific
Primarily using solid fuels Primarily using non-solid fuels
02
,00
04
,00
06
,00
08
,00
0
World
Total Population Cooking with Solid FuelsBonjour et al., 2013
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Public health and environment 11 |
Exposure-response relationship
Risk
PM2.5 Exposure
Open Fire‘Simple’ improvedChimney/RocketLPG
3
1
125 200 300 µg/m325
Fan
2
WHO air quality annual
guideline:10µg/m3
IT1 : 35 µg/m3
Child pneumonia
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Integrated Exposure-Response: Outdoor Air, SHS, and Smokingand Heart Disease
HAPZone
Outdoor Air
Pollution
SecondhandTobacco Smoke
Smokers
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Estimated 2005 annual average PM2.5 concentrations (µg/m3)
Perhaps 80% from energy
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Global DALYs 2010: Top 20 Risk Factors
Premature DeathsHBP -9.3 millionAlcohol – 7.7Tobacco – 5.7 SHS-T – 0.6House AP – 3.5 SHS-C – 0.5High BMI – 3.4Phys Inactive – 3.2Outdoor AP – 3.3High Sodium – 3.1
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Global DALYs 2010: Top 20 Risk Factors
Total Burdenfrom HAP:Direct plusSecondhand
Premature DeathsFrom Energy Systems>Household air pollution ~ 4 million>Outdoor air pollution from other energy sources ~ 2.2 million>Occupational ~ 0.3 million>Climate change ~0.2 million
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Causes of Ill-health in India for 2010
Women: Men
Source: IHME, 2013Source: IHME, 2013
HAP : 1,022,130 Deaths; 31,415,900 DALYs
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Poor Combustion is the LargestCause of Health Impacts from Energy
Poor management of fuel combustion is a major cause of ill health globally through emissions of particles and other pollutants
• Largest amount is due to solid fuels: coal and biomass
• Significant impact on child health, perhaps causing 10-15% of child mortality in poor countries
• Important impact on adult health, particularly among poor women, single largest risk factor in many poor countries
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Incomplete Combustion is Badbut so is Complete Combustion if from Fossil Fuels – CO2 and
More
• Adds to global warming• Acidifies the ocean• Health impacts of global warming are low
today, but expected to grow steadily.• Essentially occur in direct proportion to the
vulnerability of populations• Thus main impacts will be among the poor
everywhere• And largest in third-world children – currently
88% of all impacts
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© GEA 2012www.globalenergyassessment.orgChapter 4, #19
Global Radiative Forcings due to Emissions Changes, 1750–2005 (AR4)
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© GEA 2012www.globalenergyassessment.orgChapter 4, #20
Sulfur Dioxide and Black Carbon Sources
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© GEA 2012www.globalenergyassessment.orgChapter 4, #21
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Particulate Matter Sources and Processes
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Co-benefits• Although a wide ranges of changes in energy systems
will be needed to fully combat climate change,• There is a smaller set of interventions that have
significant health benefits as well.• Important energy-system co-benefits opportunities are
found in the building, transport, and residential sectors.• As well as in reproductive health services• And management of the built environment• Mitigation benefits are higher in developed countries, but
health benefits are much greater in developing countries.• These actions should be considered first so that society
continues to move toward meeting health goals as well as mitigating climate change.
• In addition, improving health in poor communities will make the world less vulnerable to climate change’s impacts.
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© GEA 2012www.globalenergyassessment.orgChapter 4, #23
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Examples of Co-benefits Analysis
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© GEA 2012www.globalenergyassessment.orgChapter 4, #24
Deaths and Total Burden of Disease Attributable to Climate Change
Disability-Adjusted Life-Years(DALYs, millions)
Premature Deaths (thousands)
120 100 80 60 40 20 0 2 4 6 8 10
Floods
Malaria
Diarrhoea
Malnutrition
2000
2030
2000
2030
2000
2030
2000
2030
Total burden of disease/injury and premature death
Deaths
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Climate Change and Health: Global Distribution
Experienced ill-health due to climate change last decade, lower line
Imposed ill-health from CO2 & CH4 emissions last decade, upper line
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© GEA 2012www.globalenergyassessment.orgChapter 4, #26
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Life-cycle Approach
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© GEA 2012www.globalenergyassessment.orgChapter 4, #27
Pollutants Associated with Biofuel Production, Transport and Use
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© GEA 2012www.globalenergyassessment.orgChapter 4, #28
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The Nuclear Fuel Chain
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Major Impacts on Global Health from Energy Systems
• Biomass/coal for household use – lack of clean fuels and good combustion
• Outdoor air pollution – not just urban, mostly from fossil fuels but also from biomass
• Occupational impacts from solid fuel harvesting and processing (coal and biomass)
• Climate change – mostly CO2 from fossil fuels, but also shorter-lived GHPs from incomplete combustion of fuels and other parts of fuel cycles.
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World Primary Energy Shares
Although the fractions ofbiomass and coal have gonedown in the energy picture,
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World Primary Energy Use
Actual Amounts of Biomass and Coal Usehave never declined –still the biggest healthrisk from energy systems
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© GEA 2012www.globalenergyassessment.orgChapter 4, #32
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Trends in Health Impacts from Energy Systems
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“Energy and Human Health”
Annual Review of Public Health, 34: 159-188, 2013
• Kirk R. Smith, Howard Frumkin, Kalpana Balakrishnan, Colin D. Butler, Zoe A. Chafe, Ian Fairlie, Patrick Kinney, Tord Kjellstrom, Denise L. Mauzerall, Thomas E. McKone, Anthony J. McMichael, and Mycle Schneider