I study U.S. gasoline prices following Hurricane Rita to show that short-lived geographical differences in the severity of wholesale gasoline price spikes are associated with long-lasting geographical differences in retail prices. In most U.S. cities, wholesale prices spiked significantly for roughly two weeks following the hurricane. However, in cities where this spike was particularly large, ...

This is the first study that quantifies explicitly impact of present vegetation on concentrations and depositions, considering simultaneously its effects meteorology, biogenic emissions, dispersion, dry deposition in three European cities: Bologna, Milan, Madrid. The behaviour pollutants (O3, NO2, PM10) was investigated two different scenarios, with actual (VEG) without it (NOVEG) for months, r...

Sustainability consists of economic, environmental, and societal aspects. Concomitant with China’s rapid growth, the evaluation of China’s ability for sustainable development (SD) has become a topic of interest. Unlike previous studies that are based on provincial regions and focus on economic and/or environmental evaluations, we have evaluated the comprehensive SD ability of 34 major cities in...

green roofs are a part of efforts to make the cities more sustainable and it is one of the modern solutions for urban problems. the physical development of cities led to loss of the natural environment. therefore, the development of green spaces plays an important role in human life. in order to evaluate the effect of some culture media on yield of “oenothera speciosa rosea” in green roof situa...

Urban economics dictate that cities must grow to maintain their vitality. Small cities increase their population and economic base, thereby expanding their city limits. Large cities manage growth so that expansion is controlled, avoiding real estate and economic depressions. Former Albuquerque Mayor David Rusk argues in Cities Without Suburbs that cities with aggressive growth strategies prospe...

S ince the 1990s, China has undergone astonishing economic growth, and its extensive urbanization has become one of the most striking development signatures anywhere in the world. With the world's largest urban population, China's urbanization experience provides meaningful insights on future urban development in other countries. 1 Because China has an extremely low per-capita land area, constr...

Introduction: Optimization of waste collection systems can reduce waste management costs. In this study, optimization of the waste collection system of district 3 of Yazd municipality of Iran has been investigated using underground containers. Materials and Methods: In this research, after collecting information and performing field inspections, the statistical and raster information obtained ...