© Duncan P. Walker, iStockphoto.com, 2007 Stephen H. Linder, Ph.D. Responding to the Challenges of Climate Disruption Stephen H. Linder, Ph.D. The University of Texas School of Public Health ©Nature Canada The World Health Organization’s summary: Global climate is warming Warming has accelerated in the last 25 years Sea levels are rising, glaciers are melting Extreme weather events are changing in intensity and frequency CO2 emitted by fossil fuel combustion is a principal cause Continued Warming could lead to abrupt changes epa.gov/climatechange/emissions/co2_human.html epa.gov/climatechange/emissions/co2_human.html CC M.Tobis, 2009 Strategies for Mitigation Federal Action Local Action Personal Measures Framing Green Transportation Senate Bingamon S1462 Stabenow S2729 Kerry-Boxer S1733 House June 2009 November 2009 Alexander-Webb S2729 Cantwell-Collins S2877 Kerry-Lieberman Luger-Graham Waxman-Markey HR2454 US EPA and Greenhouse Gases Elevated concentrations of 6 GHGs The Air Pollutant Observed & Projected Climate Change Adverse health effects Exposure mechanism Endangerment of public health and welfare Key Elements for Endangerment Analysis (1) Amounts being emitted by human activity (2) Accumulation (3) Changes in energy balance (4) Observed temperature and climatic changes (5) Observed changes in other climate sensitive sectors (6) Observed changes due to human induced buildup (7) Future projected change under different scenarios (8) Projected Risks to health society and the environment A different kind of Technical Support Document U.N. Intergovernmental Panel on Climate Change -- 4 Assessment Reports U.S. Climate Change Science Program -- 21 Syntheses and Assessments National Research Council -- 5 Reports A different kind of air pollution No direct respiratory or toxic effects No significant contribution required Not attributable to one source Global and regional Time scale of several decades A different kind of causality Mediation by scenarios of causal sequences No dose-response relationship Projected effects Prospective harm Anticipatory action Different kinds of health effects Changes in air quality -- strong and clear support Increases in temperatures -- support Changes in extreme weather events –- clear support Increases in vector-borne pathogens and aeroallergens -- not primary Susceptible populations WHO, Figure 3.1, Climate Change and Human Health Strategies for Adaptation Disaster Preparedness Public Education & Risk Communication Enhanced Monitoring Monitoring Health Outcomes WHO, Climate Change and Human Health Google Images, 2010