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2A Work Session 2009 1109
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2A Work Session 2009 1109
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11/6/2009 3:02:25 PM
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CM City Clerk-City Council - Document Type
Staff Report
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11/9/2009
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_CC Agenda 2009 1109
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November 9, 2009 <br />Section 7: Introduction <br />increased heat, pests, water stress, diseases, and weather extremes will pose <br />adaptation challenges for crop and livestock production. <br />6. Coastal areas are at increasing risk from sea-level rise and storm surge. - Sea- <br />level rise and storm surge place many U.S. coastal areas at increasing risk of erosion <br />and flooding, especially along the Atlantic and Gulf Coasts, Pacific Islands, and parts of <br />Alaska. Energy and transportation infrastructure and other property in coastal areas are <br />very likely to be adversely affected. <br />7. Threats to human health will increase. -Health impacts of climate change are related <br />to heat stress, waterborne diseases, poor air quality, extreme weather events, and <br />diseases transmitted by insects and rodents. Robust public health infrastructure can <br />reduce the potential for negative impacts. <br />8. Climate change will interact with many social and environmental stresses. - <br />Climate change will combine with pollution, population growth, overuse of resources, <br />urbanization, and other social, economic, and environmental stresses to create larger <br />impacts than from any of these factors alone. <br />9. Thresholds will be crossed, leading to large changes in climate and ecosystems. - <br />There are a variety of thresholds in the climate system and ecosystems. These <br />thresholds determine, for example, the presence of sea ice and permafrost, and the <br />survival of species, from fish to insect pests, with implications for society. <br />10. Future climate change and its impacts depend on choices made today. -The <br />amount and rate of future climate change depend primarily on current and future human- <br />caused emissions of heat-trapping gases and airborne particles. Responses involve <br />reducing emissions to limit future warming, and adapting to the changes that are <br />unavoidable. <br />According to the International Climate Change Taskforce2, the European Union, and the 2007 <br />Bali Declaration by Scientists,3 current scientific understanding states that a 2°C increase in <br />average global temperature over the next century is a safe level of global warming. To minimize <br />average global temperature increase to 2°C, greenhouse gas concentrations need to be <br />stabilized at a level well below 450 parts per million. Achieving this level requires global <br />z International Climate Change Task force. "Meeting the Challenge of Climate Change". 2005. <br />http://www.americanprogress.orq/kf/climatechallenge.pdf <br />a University of New South Wales Climate Change Research Centre. http://www.ccrc.unsw.edu.au/news/2007/Bali.html3 <br />.~. ~~ ~~ ~F9~6 <br />Page 2 <br />.~ *,,v <br />
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