Climate Migration and Urban Planning System: A Study of Bangladesh
Climate Migration and Urban Planning System: A Study of Bangladesh
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DOI：
10.1089/env.2011.0005
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发表时间：
2011-09-01
影响因子：
2
通讯作者：
Kellett, Jon
中科院分区：
文献类型：
--
作者：
Ahsan, Reazul;Karuppannan, Sadasivam;Kellett, Jon
在全球气温上升和自然环境变化的背景下，气候变化导致了一个名为“气候移民或气候难民”的新社会群体的发展。1995年，全世界大约有2500万人被认为是环境或气候难民；预计到2050年，这一数字将增加到2亿。在过去十年中，海平面上升、热带气旋、山洪、土壤盐分和河流侵蚀已成为环境或气候问题的根源。在大多数情况下，人们放弃了在农村和沿海地区的定居点，并迁移到城镇和城市。这些推动因素导致了城市化的混乱和严重，随之而来的是城市地区的拥堵、住房条件差和污染严重。在孟加拉国等发展中国家，规划系统发现难以适应与气候变化相关的移民和不受控制的城市化。因此，规划政策和实践需要发展一个垂直一体化的决策框架，将国家、区域和地方规划联系起来，以应对气候移民问题。
Amid rising global temperatures and a changing physical environment, climate change has led to the development of a newsocial group called "Climate Migrants or Climate Refugees.'' In 1995 approximately 25 million people worldwide were considered to be environment or climate refugees; it is anticipated that this number will increase to 200 million by 2050. Over the last decade rising sea levels, tropical cyclones, flash floods, soil salinity, and river erosion have emerged as the environmental or climatic push factors that have forced highly exposed and vulnerable coastal communities to migrate. In most cases people abandoned their settlements in rural and coastal areas and moved to towns and cities. Such push factors lead to chaotic and overwhelming levels of urbanization with attendant congestion, poor housing, and pollution choking urban areas. Planning systems in developing countries like Bangladesh have found it difficult to accommodate climate change-related migration and uncontrolled urbanization. Climate change is a major challenge for most coastal countries and this issue has to be addressed at various levels of planning including national, regional, and urban contexts. Consequently planning policy and practice need to evolve a vertically integrated decision-making framework linking national, regional, and local planning to address climate migration.