304%20Oct%2013%20%28Climate%20Change%29

304%20Oct%2013%20%28Climate%20Change%29 - Tim Takaro...

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Unformatted text preview: Tim Takaro Faculty of Health Sciences Potential Health Effects of Climate Change N2O Greenhouse blanket includes water vapor & other gases UN Environment Program: www.grida.no/climate And the greenhouse gas layer breathes http://www.grinzo.com/energy/index.php/2010/12/24/watching-the-earth-breathe/ Watch: : IPCC 2001. www.grida.no/climate/ipcc_tar Different assumptions for projections: • Population growth • Economic growth • Fossil fuel availability and use • Use of nuclear power IPCC: Climate Change 2001 . www.grida.no/climate/ipcc_tar The Land and Oceans have warmed, but not uniformly Proof That Global Warming Exists www.eia.doe.gov Global carbon cycle Temperature Rise 1 Sea level Rise 2 Hydrologic Extremes Urban Heat Island Effect Air Pollution & Aeroallergens Vector-borne Diseases Water-borne Diseases Water resources & food supply Mental Health & Environmental Refugees Heat Stress Cardiorespiratory failure Respiratory diseases, e.g., COPD & Asthma Malaria Dengue Encephalitis Hantavirus Rift Valley Fever Cholera Cyclospora Cryptosporidiosis Campylobacter Leptospirosis Malnutrition Diarrhea Toxic Red Tides Forced Migration Overcrowding Infectious diseases Human Conflicts 1 3-7 °C by yr. 2100 2 40 cm increase IPCC estimates Modified from Patz, 1998 HEALTH EFFECTS OF CLIMATE CHANGE WHO Assessment Burden of Disease Due to Climate Change • Global climate change since mid-1970s could be cause of over 150,000 deaths/yr. • And 5 Million Disability Adjusted Life-yrs lost. Due largely to: – Diarrheal disease (temp effects only) – Malaria – Malnutrition – Also, CVD, flooding, NOT direct heat related deaths McMichael et al. in Comparative Quantification of Health Risks : WHO 2004 Patz, Gibbs et al. 2007 Americans emit 6-times the global average CO2 per capita Based on Smith et al. 2004. Distribution of 166,000 deaths/yr from recent warming. Based on McMichael et al 2004. IPCC 2001. www.grida.no/climate/ipcc_tar Climate Change Impacts on the US - Nat.Assessent 2000 Urban Heat Island Effect • Urban architecture and asphalt absorbs heat during day, then radiates at night to raise average 24 hr. temp. • Diminished shade and plant respiration contributes to increased temperatures • Buildings often reduce wind velocity and air circulation Acute Heat Effects • Heat Exhaustion – Normal mental status – Core Temp. < 40.6o C – Sweating – Heat stroke • Heat Stroke – Disoriented – Core Temp >40.6o C – Dry skin – Death Susceptible Populations •...
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This note was uploaded on 11/05/2011 for the course HSCI 304 taught by Professor Allen during the Fall '11 term at Simon Fraser.

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304%20Oct%2013%20%28Climate%20Change%29 - Tim Takaro...

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