Group items tagged

Thématique n° 2 [ScienceDirect, via Biblio-SHS] Auteur : Lynn Price, Nan Zhou, David Fridleya, Stephanie Ohshitaa, Hongyou Lua,Nina Zhenga, Cecilia Fino-Chen Paru dans : Habitat International, Available online 28 January 2012 Abstract In 2009, China committed to reducing its carbon dioxide intensity (CO2/unit of gross domestic product, GDP) by 40-45% by 2020 from a s2005 baseline and in March 2011, China's 12th Five-Year Plan established a carbon intensity reduction goal of 17% between 2011 and 2015. The National Development and Reform Commission (NDRC) of China then established a Low Carbon City policy and announced the selection of 5 provinces and 8 cities to pilot the low carbon development work. How to determine if a city or province is "low carbon" has not been defined by the Chinese government. Macro-level indicators of low carbon development, such as energy use or CO2 emissions per unit of GDP or per capita may be too aggregated to be meaningful measurements of whether a city or province is truly "low carbon". Instead, indicators based on energy end-use sectors (industry, residential, commercial, transport, electric power) offer a better approach for defining "low carbon" and for taking action to reduce energy-related carbon emissions. This report presents and tests a methodology for the development of a low carbon indicator system at the provincial and city level, providing initial results for an end-use low carbon indicator system, based on data available at the provincial and municipal levels. The report begins with a discussion of macro-level indicators that are typically used for inter-city, regional, or inter-country comparisons. It then turns to a discussion of the methodology used to develop a more robust low carbon indicator for China. The report presents the results of this indicator with examples for 6 selected provinces and cities in China (Beijing, Shanghai, Shanxi, Shandong, Guangdong, and Hubei). The repor

DOI : http://dx.doi.org.gate3.inist.fr/10.1016/j.proenv.2012.01.113 [ScienceDirect, via Biblio-SHS] Auteur : Gengyuan Liu, Zhifeng Yang, Bin Chen, Meirong Su (State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing) Paru dans : Procedia Environmental Sciences, Volume 13, 2012, Pages 1189-1203, 18th Biennial ISEM Conference on Ecological Modelling for Global Change and Coupled Human and Natural System Abstract In this paper, a dynamic low-carbon model was developed to show a quantitative and consistent future snapshot. This study presents three scenarios for Chongqing's energy consumption and related CO2 emissions up to 2020, which includes basic development scenario, macro-policy control development scenario and low carbon development scenario. It explains the crucial technologies for Chongqing city as it leaves a business-as-usual trajectory and embarks on a low carbon pathway. A major finding from the scenario analysis is that low carbon and energy-saving policies can dramatically improve Chongqing's position. Under the low carbon scenario, several suggestions for policy making are proposed. This dynamic low-carbon model would benefit from the allocation of decision-making powers in the areas of regulation, policy-making and planning for low carbon development.

Abstract: Threatened by the huge pressure caused by climate change, low-carbon cities have become an inevitable part of urban evolution. It is essential to evaluate urban low-carbon development levels to smoothly promote the construction of low-carbon cities. This paper proposes an evaluation index system for urban low-carbon development from the points of view of economic development and social progress, energy structure and usage efficiency, living consumption, and development surroundings. A weighted sum model was also established. Selecting 12 typical Chinese cities as cases studies, an integrated evaluation was conducted based on the index system and the assessment model. The development speed and limiting factors of different cities were also analyzed. The 12 cities were ultimately classified into three groups in terms of their low-carbon development patterns by integrating all of the analysis results. Furthermore, suitable regulation and management for different patterns were suggested. This study both aids in assessing the executive effect of low-carbon city construction and helps to determine existing problems and suggest effective solutions.

DOI: http://dx.doi.org.gate3.inist.fr/10.1016/j.proenv.2012.01.107 [ScienceDirect, via Biblio-SHS] Auteur : M.R. Su, B. Chen, T. Xing [et al.] Paru dans : Procedia Environmental Sciences, Volume 13, 2012, Pages 1143-1148 18th Biennial ISEM Conference on Ecological Modelling for Global Change and Coupled Human and Natural System Abstract It is undoubted that low-carbon city has become a vital development trend for Chinese cities in the new century. Many Chinese cities have been devoted to the upsurge of low-carbon city construction in recent years. Focusing on these problems - What measures has been adopted to construct low-carbon city in China? How is the effect of low-carbon city construction? Are there some issues needing attention in the future - this paper summarizes the situation of low-carbon city development in China and clarifies a few viewpoints that need be paid attention to in the subsequent development. It is expected that the discussion in this paper can help promote the construction of low-carbon city in China.

Centre for Sustainable Energy Technologies, The University of Nottingham Ningbo China 27th to 28th October 2012 Ningbo, Zhejiang, China The building sector is one of the highest energy consuming sectors in China accounting for about 30% of total energy usage and also contributes to a significant proportion of pollutant emissions in China. Meanwhile, building construction activities are contributing significantly towards China's economic growth and infrastructure development under the current urbanisation programme. It is estimated that half of the world's buildings being constructed between now and 2020 are expected to be built in China and if nothing is done to control the upward energy trend, building-related energy consumption could double and have a devastating effect on the environment and the economy as a whole. The objective of this international symposium is therefore to provide a forum for academics, government officials, researchers and practitioners to present and discuss recent research and demonstration projects related to low carbon buildings in China. The event will feature well known international experts in this field as Keynote speakers. General topic areas * Sustainable Energy Technologies * Energy storage technologies * Energy and Environmental Policy * Modelling and simulation of buildings * Thermal Energy Management systems * Low carbon construction materials * Eco-building design * Integration of renewable energy technologies in refurbished buildings * Life cycle analysis of low carbon buildings * Waste and water management * Energy Management Contract systems * Post occupancy evaluation of low carbon buildings * Green Architecture * Design for low impact healthcare buildings * Improving sustainability (and resilience) of healthcare facility * Sustainable Urbanism * Urban form and Energy use or Low carbon cities * Green and liveable cities Website: http://www.nottingh

Zhang Chun Wang Haotong August 03, 2012 China's low-carbon city programmes are doing well on public awareness, but an NGO survey finds little evidence of greener habits. Only a small proportion of people in China's low-carbon pilot cities are living "low-carbon lives" in spite of widespread knowledge of the green agenda, a year-long survey of household energy consumption carried out by Beijing-based NGO Green Beagle suggests. The study of habits in eight Chinese cities identified as green leaders by China's top economic planning body, the National Development and Reform Commission, involved 3,200 questionnaires and interviews with three to five households in different income brackets in each region. The NGO wanted to find out if inhabitants of these places had heard about "low-carbon" lifestyles and whether they were making efforts to reduce their own environmental footprint through their daily choices. Under the "low-carbon" pilot scheme, which launched in 2010, the eight cities - Tianjin, Chongqing, Shenzhen, Xiamen, Hangzhou, Nanchang, Guiyang and Baoding - are trying to find ways of reducing carbon emissions while continuing to grow economically (Beijing and Shanghai were added to the list in 2011, but are treated as a separate category). Five provinces are charged with the same task: Guangdong, Liaoning, Hubei, Shanxi and Yunnan. If they perform well, they will be treated as an example for the rest of the country.[...]

October 19-21, Guangzhou baiyun international convention center LCES-2012 will continue to provide an alternative platform to other global conferences in related to climate change and environment protection. We will focus more on practical perspectives on green economy, promotion of sustainable or renewable energy, and exhibit technical resolutions to solve and predict the existing issues. Through the massive operations on comprehensive topics related low carbon economy and industries, we hope the summit can provide best information to exchange channels for all endeavors on low carbon fields who are working on controlling global climate changes from policy makers, NGO leaders, economists, investors, engineers, scientists, industrial leaders, carbon traders, brokers, clean emerge producers, energy consumers, toward daily low carbon life practitioners and advocators etc. Thus, LCES-2012 can provide help our society and humanity with unprecedented impacts on the world sustainable development, new economy growth and renewable energy innovation to commercialization.

A group of government officials from China traveled on a study tour in the United States last week. The tour, hosted by the World Resources Institute, focused on low carbon development. The delegation was led by Director General Su Wei of the Department of Climate Change from China's National Development and Reform Commission (NDRC), who is China's chief negotiator on climate change and a key decision maker for low-carbon development initiatives.

[ScienceDirect, via Biblio-SHS] Auteur : Steffen Lehmann Paru dans : Habitat International, Available online 4 January 2012 Abstract The purpose of this paper is to explore the rapid urbanization of Chinese cities with a focus on the plans for a new, ongoing urban sub-centre in the north-west of Shanghai: Zhenru Urban Sub-Centre. Information-rich urbanization is a defining feature of the 21st century, reshaping cities and communities in China and in developing countries around the world. The scale and pace of change requires a solid systems approach of urban development. In 2011, China announced that it has reached an urbanization rate of 50%. If we take rapid urbanization as a given and that it is already well underway, it is still widely unclear what research needs to be conducted and policy changes made to support municipalities of fast transforming cities and to avoid repeating the development mistakes that have occurred in industrialized nations, i.e. driving urban growth with high consumption patterns without fully considering the environmental and social needs and occupants' behaviour and aspirations. This paper compares two cases of urban development patterns for new sub-centres for polycentric city structures: It relates to new urban sub-centres in Berlin (Germany) and Shanghai (China), and the relationship of these sub-centres to 'Network City' theory. Network theory is useful in this context as the 'network' metaphor and concepts of decentralization seem to have replaced the 'machine' metaphor which was based on efficiency based on the availability of cheap fossil fuels. As cities aim to move towards more resilient urban ecosystems and polycentric systems, the case of Potsdamer Platz Berlin, compared to Zhenru Sub-Centre in Shanghai, is discussed. Both are transport-oriented developments promoting mixed-use density and less car-dependency. According to documentation of the Shanghai municipality, Zhenru urban centre, which is cur

Abstract In 2011, China announced that it has reached an urbanisation rate of 50%. If we take rapid urbanisation as a given and that it is already well underway, it is still widely unclear what research needs to be conducted and policy changes made to support municipalities of fast transforming cities and to avoid repeating the development mistakes that have occurred in industrialised nations, i.e. driving urban growth with high consumption patterns without fully considering the environmental and social needs and occupants' behaviour and aspirations. The scale and pace of change requires a solid systems approach of urban development. The purpose of this paper is to explore the rapid urbanisation of Chinese cities with a focus on the plans for a new, on-going urban sub-centre in the north-west of Shanghai: Zhenru urban sub-centre. Information-rich urbanisation is a defining feature of the 21st century, reshaping cities and communities in China and in developing countries around the world. The paper compares two cases of urban development patterns for new sub-centres for polycentric city structures: it relates to new urban sub-centres in Berlin (Germany) and Shanghai (China), and the relationship of these sub-centres to 'Network City' theory. Network theory is useful in this context as the 'network' metaphor and concepts of decentralisation seem to have replaced the 'machine' metaphor which was based on efficiency based on the availability of cheap fossil fuels. The question to be addressed is how Chinese cities can be better steered towards more sustainable models of development. As cities aim to move towards more resilient urban ecosystems and polycentric systems, the case of Potsdamer Platz Berlin, compared to Zhenru sub-centre in Shanghai, is discussed. Both are transport-oriented developments promoting mixed-use density and less car-dependency. According to documentation of the Shanghai municipality, Zhenru urban centre, which is currently

[ScienceDirect, via Biblio-SHS] Auteur : Steffen Lehmann Paru dans : Sustainable Cities and Society, Volume 3, July 2012, Pages 1-12 Abstract In 2011, China announced that it has reached an urbanisation rate of 50%. If we take rapid urbanisation as a given and that it is already well underway, it is still widely unclear what research needs to be conducted and policy changes made to support municipalities of fast transforming cities and to avoid repeating the development mistakes that have occurred in industrialised nations, i.e. driving urban growth with high consumption patterns without fully considering the environmental and social needs and occupants' behaviour and aspirations. The scale and pace of change requires a solid systems approach of urban development. The purpose of this paper is to explore the rapid urbanisation of Chinese cities with a focus on the plans for a new, on-going urban sub-centre in the north-west of Shanghai: Zhenru urban sub-centre. Information-rich urbanisation is a defining feature of the 21st century, reshaping cities and communities in China and in developing countries around the world. The paper compares two cases of urban development patterns for new sub-centres for polycentric city structures: it relates to new urban sub-centres in Berlin (Germany) and Shanghai (China), and the relationship of these sub-centres to 'Network City' theory. Network theory is useful in this context as the 'network' metaphor and concepts of decentralisation seem to have replaced the 'machine' metaphor which was based on efficiency based on the availability of cheap fossil fuels. The question to be addressed is how Chinese cities can be better steered towards more sustainable models of development. As cities aim to move towards more resilient urban ecosystems and polycentric systems, the case of Potsdamer Platz Berlin, compared to Zhenru sub-centre in Shanghai, is discussed. Both are transport-oriented developments promoti

[ScienceDirect, via Biblio-SHS] Auteur : Wilco Chan Paru dans : International Journal of Hospitality Management, Volume 31, Issue 4, December 2012, Pages 1130-1142 Abstract Achieving effective and objective energy benchmarking for hotels is integral in fostering the sustainable development of the lodging sector. In this work, we reveal the major and minor streams of hotel energy benchmarking and ascertain that the most popular approach in benchmarking is normalized energy use intensity (EUI) based on floor level. Previous efforts to establish EUI indicators using subsystem average, data envelopment analysis (DEA), and regression technique are also studied. We propose that hotel energy benchmarking based on floor area is useful from the top-down management perspective. However, on a practical perspective, energy benchmarking based on facilities should be the first priority for hotel management or owners. Compared with the general energy benchmarking in the building sector, we find that the hotel sector lags behind in the adoption of computer modeling for benchmarking. By conducting in-depth interviews with hotel engineers, system designers, and professors to identify the challenges faced by current hotel energy benchmarking, we gain deeper insights on the development of hotel energy benchmarking that reflect the current situation in China. A taxonomical approach focusing on four directions of hotel energy benchmarking is thus proposed. By coordinating with various types of stakeholders and implementing the proposed development plan, the local Construction Ministry, Tourism Bureau, and Energy Improvement Office can realize this conceptual hotel energy benchmarking in China.

[ScienceDirect, via Biblio-SHS] Auteur : XiaoFang Sun, TianXiangYue, ZeMeng Fan Paru dans : Procedia Environmental Sciences, Volume 13, 2012, Pages 590-597 18th Biennial ISEM Conference on Ecological Modelling for Global Change and Coupled Human and Natural System Abstract Land use changes affect many aspects of Earth System functioning, for example in impacting global carbon cycle, contributing to climate change, or increasing soil erosion. The simulation of land use change is important in environmental impact assessment and land use planning. We assessed the land use scenarios of China in the next 100 years based on the SMLC (surface modelling of land cover change) model and Dyna-CLUE (dynamic conversion of land use and its effects) model. Three SRES scenarios were evaluated: Global Economy (A1FI): lean government, strong globalization; Continental Markets (A2a): lean government, regional culture and economic development; Regional communities (B2a): much government intervention, regional cultural and economic development. Ten land cover types were simulated, which are cultivated land, woodland, grassland, built-up land, water area, wetland, nival area, desert, bare rock and desertification land. The SMLC model was used to calculate changes in area for each land use types in the future at country level while the spatially explicit land use model Dyna-CLUE was used to simulate land use pattern at 2 km2 resolution based on the country level areas demands for each land cover type. The results show that the cultivated land would decrease in all of the three scenarios, while in the A2a scenario, the cultivated land would decrease with the lowest rate because of the high population growth, high level of market protection and low agricultural efficiency; in the B2a scenario, it would decrease with the highest rate caused by the decreased population numbers and increased crop productivity. The nival area would decrease with the highest rate in the A1FI

Author: Zhou, Nan Publication Date: 05-15-2012 Publication Info: Lawrence Berkeley National Laboratory Texte intégral téléchargeable sur le site des archives ouvertes de l'Université de Californie : http://www.escholarship.org/uc/item/1sp9m82g Executive Summary "Local level actions and leadership are crucial for achieving national energy-saving or greenhouse gas emission (GHG) reduction targets. Local level actions can also assist in proving the effectiveness of new policies or initiatives by demonstrating them at a smaller scale. It is often also shown that innovative policies or practices can be relatively easily implemented at the local level because of the reduced scale and the possibility of exemption from some national legislative bureaucracy. Following success at the local level, the pilot policies or practices could be replicated to other localities or expanded to a national program. For example, China's Top-1000 Enterprise Program was drawn upon the successful experience from a demonstration program implemented in two steel mills in Shandong province that was modeled after the voluntary agreements program in The Netherlands (Price et al. 2003)."

"Building local ties and creating a long-term future in Chongqing is the goal of BritCham's development forum, notes Thomas Vincent. Chongqing is urbanising at a tremendous rate. Two thousand people a day are moving into built up areas across the Municipality, maintaining a steady stream of demand for the construction of residential and commercial property. It could be said that Chongqing is currently at the forefront of urbanisation in the entire world, and so there is nowhere more fitting to educate and inform people about the need for sustainability."

Building local ties and creating a long-term future in Chongqing is the goal of BritCham's development forum, notes Thomas Vincent. Chongqing is urbanising at a tremendous rate. Two thousand people a day are moving into built up areas across the Municipality, maintaining a steady stream of demand for the construction of residential and commercial property. It could be said that Chongqing is currently at the forefront of urbanisation in the entire world, and so there is nowhere more fitting to educate and inform people about the need for sustainability.

Axel Baeumler, Ede Ijjasz-Vasquez, Shomik Mehndiratta, Editors. This volume is a product of the staff of The World Bank with external contributions