The Effect of Climate Change on Human Health_F10_Lect13

The Effect of Climate Change on Human Health_F10_Lect13 -...

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The Effect of Climate Change on Human Health Fall 2010, Lecture 13 1
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Overview of Effects Climate change is expected to have a major influence on certain types of disease Changes in both temperature and humidity will play an important role Some of the effects are already being seen Some increased health risk will be due to extreme weather events, like the 2010 heat wave in Russia, but many problems will involve continual climate modification 2
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Increased Risk and Benefit Some climate changes may produce health benefits, but most will increase risk The following slides outline a few examples 3
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Increased Heat Risk - More deaths and increased disease risk due to very hot days Benefit – Fewer winter deaths and disease events 4
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Heat-wave Effects According to the IPCC Fourth Assessment (2007), by 2100: o Chicago is projected to experience 25% more frequent heat waves o Los Angeles is expected to experience a four to eight-fold increase in heat-wave days Those with heart problems, asthma, the elderly, the very young and the homeless can be especially vulnerable to extreme heat 5
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Increased Heat Stress Schematic representation of how an increase in average annual temperature would affect annual total of temperature-related deaths, by shifting distribution of daily temperatures to the right Additional heat-related deaths in summer would outweigh the extra winter deaths averted (as may happen in some northern European countries) Average daily temperature range in temperate countries would be about 5–30ºC. 6
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Food Poisoning Risk increases due to higher temperatures Salmonellosis is especially likely to be a problem 7
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Aero-allergen Production Risk – Increased allergic disorders, including hay fever and asthma due to longer pollen seasons Benefit – Reduced exposure to aero-allergrens in some places due to lower productions or shorter seasons of pollen circulation o Higher temperatures and changed humidity may make the growing seasons shorten for some plants 8
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Effects of Extreme Temperatures A European study of hospital admission data for a dozen major cities found that for every 1ºC rise in temperature, hospital admissions for respiratory and asthma-related illness increase up to 4.5% among the elderly The Russian heat wave of 2010 doubled the death rate in Moscow to 700 people per day during the heat wave During the summer 1995 heat wave in Chicago, it is estimated there were 700 excess deaths due to heat 9
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Water-borne Infection Risk - Cholera risk will increase in coastal or estuarine regions, due to a warming of water temperatures Benefit – risk will diminish in areas where heavy rainfalls decrease 10
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Vector-borne Infections Risk – Both mosquito and tick borne
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This note was uploaded on 05/04/2011 for the course ESC 3704 taught by Professor Staff during the Spring '08 term at FAU.

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The Effect of Climate Change on Human Health_F10_Lect13 -...

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