Making cities resilient to climate change: identifying “win–win” interventions

Urbanisation is truly a global phenomenon. Starting at 39% in 1980, the urbanisation level rose to 52% in 2011. Ongoing rapid urbanisation has led to increase in urban greenhouse gas (GHG) emissions. Urban climate change risks have also increased with increase in climate-induced extreme weather events and more low-income urban dwellers living in climate sensitive locations. Despite increased emissions, including GHGs and heightened climate change vulnerability, climate mitigation and adaptation actions are rare in the cities of developing countries. Cities are overwhelmed with worsening congestion, air pollution, crime, waste management, and unemployment problems. Lack of resources and capacity constraints are other factors that discourage cities from embarking on climate change mitigation and adaptation pathways. Given the multitude of problems faced, there is simply no appetite for stand-alone urban climate change mitigation and adaptation policies and programmes. Urban mitigation and adaptation goals will have to be achieved as co-benefits of interventions targeted at solving pressing urban problems and challenges. The paper identifies administratively simple urban interventions that can help cities solve some of their pressing service delivery and urban environmental problems, while simultaneously mitigating rising urban GHG emissions and vulnerability to climate change.     

Adapting cities to climate change – exploring the flood risk management role of green infrastructure landscapes

There is now an emerging sense of the scope and nature of response that can be implemented at building and neighbourhood scales to help adapt cities and urban areas to the changing climate. In comparison, the role of larger natural and semi-natural landscapes that surround and permeate cities is less well understood. Addressing this knowledge gap, this paper outlines two case studies that describe and map the flood risk management functions offered by green infrastructure landscapes situated within the Urban Mersey Basin in North West England. The case studies establish that areas potentially exposed to flooding can be located at some distance, and within different jurisdictions, from upstream areas where the flood hazard may be generated and could be moderated via functions provided by green infrastructure landscapes. This raises planning and governance challenges connected to supporting and enhancing flood risk management functions provided by green infrastructure landscapes.     

应对气候变化治理模式国别比较分析

应对气候变化是全球各国共同面临的严峻挑战,而不同国家由于其自身发展阶段、治理水平等存在差异,气候治理模式也呈现不同特征。本文系统梳理了英国、德国、法国、美国、欧盟、日本、韩国、印度、巴西、南非等全球主要经济体和排放体的气候政策体系与机构设置情况,将其气候治理模式分为五类：政策引领型、法律缺失型、整体完备型、部分行业先行型和政策协调双缺失型,并从政治体制和党派态度、资源禀赋和强势部门、战略定位与气候叙事、公众态度与国际事件四个维度进行了影响因素的分析。建议我国未来可在加快推进气候立法、充分发挥制度优势、形成中国特色治理方案、推动建立公平合理互利共赢国际治理体系、落实完善“1+N”政策体系等方面加强工作部署,提升应对气候变化治理水平,促进“双碳”目标尽早实现。