Suchergebnisse

The 17 Sustainable Development Goals of the United Nations propose to "ensure healthy lives and promote well-being for all at all ages", and to achieve this goal requires that countries strengthen their capacity to manage health risks. As a concept to describe urban construction, advocated by the World Health Organization, healthy cities can effectively solve the contradictions existing along the current urban development path at a macro level. A healthy city is a sustainable city that interacts with its environment, economy, population, services, and space, and realizes the well-being of its population from all perspectives. The construction of a healthy city is an important part of the transformation of Chinese urbanization. This article refers to the index systems of domestic and foreign government agencies, along with a literature research, to construct a healthy city evaluation index that takes into account the five aspects of environment, economy, population, service, and space, and selects Beijing (a policy-oriented city), Shanghai (an economy-oriented city), Nanchang (an industry-oriented city), Guiyang (a tourism-oriented city), Datong (resource-oriented city) as five cities according to type of urban development, using the entire-array-polygon method to analyze the construction level of these cities in terms of environment, economy, population, service, space and overall state of health from 2014 to 2018 based on statistical and land use data. The results of the study found that, in general, the construction of healthy cities in China currently experiences large year-to-year fluctuations and significant differences between cities. The construction and development of healthy cities are also closely related to factors such as urban economic strength, social welfare, and policy support.

AbstractThis article proposes two dual‐ascent algorithms and uses each in combination with a primal drop heuristic embedded within a branch and bound framework to solve the uncapacitated production assembly distribution system (i.e., supply chain) design problem, which is formulated as a mixed integer program. Computational results indicate that one approach, which combines primal drop and dual‐ascent heuristics, can solve instances within reasonable time and prescribes solutions with gaps between the primal and dual solution values that are less than 0.15%, an efficacy suiting it for actual large‐scale applications. © 2012 Wiley Periodicals, Inc. Naval Research Logistics, 2013

In order to realise the goal of the Paris Agreement, China has announced to enhance its nationally determined contributions (NDCs), demonstrating its determination to adopt more rigorous policies and measures to achieve a peak in carbon emissions by 2030 and carbon neutrality by 2060. China's pledge to carbon neutrality not only has a profound impact on its economic reforms, but also spurs the country to be more proactive in global climate governnance.

AbstractThe net zero strategy has created a global competition for carbon finance innovation, with over 50 countries and regions aiming for carbon neutrality by 2050 or 2060. This paper provides a preliminary comparative study of carbon neutrality policy instruments in Japan, Singapore and Hong Kong SAR, China: three critical and distinct economies in the Asia-Pacific region. The study examines policies in six categories that support carbon neutrality and compares them based on political economy and market features. The findings reveal that Japan has a rather diverse policy matrix, while Singapore has made rapid progress in carbon finance in a controversial political economy. Hong Kong's renewable energy policies use a multifaceted approach that emphasizes both carbon emission reduction and environmental quality improvement. Although Hong Kong aspires to become a centre for green finance, it currently lags behind Singapore in this area. The study sheds light on the development and implementation of emerging policies related to carbon neutrality in Asia-Pacific region.