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Regional Environmental Change - When established institutional pathways for energy efficiency policies necessary to mitigate climate change are blocked at the federal level, how do entrepreneurs in...  相似文献   

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Associations between positive thyroid autoantibodies and total blood mercury in women were evaluated using the National Health and Nutrition Examination Survey (NHANES), 2007–2008. Women are at increased risk for autoimmune disorders, mercury exposure has been associated with cellular autoimmunity and mercury accumulates in the thyroid gland. We used multiple logistic regression to evaluate the associations between total bloodmercury and thyroglobulin autoantibody antibody positivity and thyroid peroxidase autoantibody positivity in non-pregnant, non-lactating women aged 20 and older not currently using birth control pills or other hormone therapies, adjusted for demographic factors, menopausal status, nutrient intake and urine iodine (n = 2047). Relative to women with the lowest mercury levels (≤ 0.40 μg/L), women with mercury > 1.81 μg/L (upper quintile) showed 2.24 (95% CI = 1.22, 4.12) greater odds for thyroglobulin autoantibody positivity (ptrend = 0.032); this relationship was not evident for thyroid peroxidase autoantibody positivity. Results suggest an association between mercury and thyroglobulin autoantibody positivity.  相似文献   

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~~《中国人口.资源与环境》选题指南  相似文献   

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关于《新疆21世纪议程〉.和可持续发展问题的思考   总被引:2,自引:0,他引:2  
一、新疆自然资源及社会经济发展现状 (一)丰富的自然资源 1.水资源 新疆全年水汽总量为13797亿t,降水总量约为2429亿t,占17.6%,使占全国土地面积1/6的新疆所得到的降水仅占全国降水总量的4%,降水的84%分布于山区,形成干旱区中“湿岛”,为绿洲发展提供生命之源。新疆地表水径流量884亿m~3,地下水可开采量252亿m~3,高山区分布了24479km~2冰川,蓄水量25836亿m~3,是巨大的“固体水库”。  相似文献   

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Massachusetts v. Environmental Protection Agency was the first Supreme Court opinion generated specifically as a response to the issue of anthropogenic CO2 emissions, alleging that Environmental Protection Agency's (EPA) failure to regulate is leading to environmental harms for plaintiffs. This essay examines the majority opinion of Justice Stevens and his use of presumption and burden of proof, within a logic of problematic integration, to construct “certainty” as a rebuttal to and rejection of the “uncertainty” offered by EPA. I examine how this strategically constructed rebuttal to “uncertainty” functions as a declarative act of “certainty,” advancing a proposition whose scientific, legal, or political acceptance could function as a tipping point away from the claims of “uncertainty” used by opponents on this contentious issue. Because of the court's influence, the implications of their “certainty” extend beyond the case and into the broader discussion of climate change science and environmental communication.  相似文献   

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Environment, Development and Sustainability - Time and again, climate change is a global phenomenon; intrinsically affects people and the environment more at the local and the global level when...  相似文献   

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研究表明VIC模型在西苕溪流域具有良好的适用性,特别是对汛期洪水的模拟。应用陆面水文模型VIC与区域气候模式PRECIS耦合,探讨了西苕溪流域未来洪水对气候变化的响应。结果表明:横塘村水文站月平均流量与月最大洪峰流量的关系较为密切,相关系数均在0.85以上,在一定程度上可以表征洪水的变化特征;基于PRECIS生成的气候情景,未来时期西苕溪流域洪水对气候变化的响应比较明显,尤其是汛期流量增加趋势较显著;结合P-Ⅲ型分布频率分析,西苕溪流域2021~2050年发生洪水极值事件的频率及量级都较基准期增大,且A2情景比B2情景相对更容易触发较大洪水,基准期50 a一遇洪水在未来两种情景下分别缩短为27 a一遇和32 a一遇,说明流域洪水对于气候变化的响应程度增大。  相似文献   

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