As economic hubs, cities also have a crucial role to play in mitigating global climate change. The Intergovernmental Panel on Climate Change (IPCC) has found particularly great opportunities in fastgrowing urban centres in developing countries, but cities at all levels are pursuing climate action. Many of the measures they are choosing – e.g. retrofitting buildings to be more energy-efficient, improving public transit, promoting biking and walking, encouraging denser development – have also been shown to have broader economic and social benefits. This paper looks at this issue in the other direction: how cities’ economic development strategies are likely to affect global greenhouse gas (GHG) emissions. It examines policies and actions that are already widely used by cities to advance economic development and competitiveness, assess the evidence on their net GHG impact, and identify key issues that cities may want to address if they wish to align their climate and economic development goals.
This paper, produced through the New Climate Economy Cities Research Programme, focuses on one central aspect of urban development: transport and urban form and how the two shape the provision of access to people, goods and services, and information in cities. The more efficient this access, the greater the economic benefits through economies of scale, agglomeration effects and networking advantages. This paper discusses how different urban accessibility pathways impact directly on other measures of human development and environmental sustainability. It also presents the enabling conditions for increasing accessibility and low-carbon mobility in cities.
This paper, produced through the New Climate Economy Cities Research Programme, identifies three groups of cities that will be particularly important for the global economy and climate: Emerging Cities, Global Megacities and Mature Cities. When combined, these 468 cities are projected to contribute over 60 per cent of global GDP growth and over half of global energyrelated emissions growth between 2012 and 2030 under business as usual. Furthermore, this paper reviews the contribution of small urban areas to economic growth and carbon emissions. Finally, this paper explores the potential of the 3C model to maximise the benefits of urban growth while minimising the costs in emerging cities, global megacities and mature cities, and reviews examples of cities where elements of the model have already been implemented.
The Global Green Economy Index (GGEI) provides a ranking of how 60 countries and 70 cities perform in the global green economy and how expert practitioners perceive this performance. The GGEI performance index uses quantitative and qualitative indicators to measure how well each country performs on four key dimensions: leadership & climate change, efficiency sectors, markets & investment and environment & natural capital. Then, the GGEI perception survey collects assessments from expert practitioners on these same four dimensions.
This book is aimed at practitioners, students and scholars in architecture, urban planning and design. It features essays on ecologically sustainable cities by leading exponents of urban sustainability, case studies of the new directions low carbon cities might take and investigations of how we can mitigate urban heat stress in our cities’ microclimates. The book explores the underlying dimensions of how existing cities can be transformed into low carbon urban systems and describes the design of low carbon cities in theory and practice. It considers the connections between low carbon cities and sustainable design, social and individual values, public space, housing affordability, public transport and urban microclimates. Given the rapid urbanisation underway globally, and the need for all our cities to operate more sustainably, the book argues for the need to think about how spatial planning and design can help transform urban systems to create low carbon cities.