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Coastal Sensitivity to Sea-Level Rise: A Focus on the Mid-Atlantic Region

机译：沿海地区对海平面上升的敏感性：以大西洋中部地区为重点

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摘要

U.S. Environmental Protection Agency. "For the mid-Atlantic region, acceleration in sea-level rise by 2 millimeters per year will cause many wetlands to become stressed; it is likely that most wetlands will not survive acceleration in sea-level rise by 7 millimeters per year." Global sea level is rising, and there is evidence that the rate is accelerating. Increasing atmospheric concentrations of greenhouse gases, primarily from human contributions, are very likely warming the atmosphere and oceans.The warmer temperatures raise sea level by expanding ocean water, melting glaciers, and possibly increasing the rate at which ice sheets discharge ice and water into the oceans. Rising sea level and the potential for stronger storms pose an increasing threat to coastal cities, residential communities, infrastructure, beaches, wetlands, and ecosystems. The potential impacts to the United States extend across the entire country: ports provide gateways for transport of goods domestically and abroad; coastal resorts and beaches are central to the U.S. economy; wetlands provide valuable ecosystem services such as water filtering and spawning grounds for commercially important fisheries. How people respond to sea-level rise in the coastal zone will have potentially large economic and environmental costs.
机译：美国环境保护署。 “对于大西洋中部地区，每年海平面上升2毫米的加速将使许多湿地变得压力重重;大多数湿地可能无法承受每年7毫米海平面上升的加速。”全球海平面正在上升，并且有证据表明这一速度正在加快。大气中温室气体浓度的增加（主要来自人类的贡献）很可能使大气和海洋变暖。温度的升高通过扩大海水，融化冰川以及可能增加冰原将冰和水排入海洋的速率来提高海平面。海洋。海平面上升和暴风雨的可能性对沿海城市，居民社区，基础设施，海滩，湿地和生态系统构成越来越大的威胁。对美国的潜在影响遍及全国：港口为国内外货物运输提供了门户;沿海度假胜地和海滩是美国经济的中心;湿地为商业上重要的渔业提供有价值的生态系统服务，例如滤水和产卵场。人们如何应对沿海地区的海平面上升将潜在地带来巨大的经济和环境成本。

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