Introduction The United Nations (UN) articulates that approximately half of the entire population in the world now lives in urban areas. Due to urbanization, the number, the size, the kind and the compactness of cities, in addition to the effectiveness of their management of the environment are major concerns for attainment of the international sustainability. The rural-urban migration, which the main explanation behind urbanization, is because of two major causes namely: the rural exclusion aspects (poverty, shortage of land and job chances) and the pleasant aspects of the city (job provisions and social amenities). All the same, there is a common view that urbanization has enormous effects on the environment. Soil and water pollution, the most conspicuous ones, arise because of the lack or insufficiency of management on industrial waste in addition to the insufficiency of control on chemical pollutants (Rimal 54-56). Other noteworthy impacts associated with urbanization are the decrease of the carrying capacity, viz. the size of urban land cannot sustain such a huge population size as compared to an equal land in rural areas due to a greater environmental pressure associated with urban population. Moreover, urbanization has also a great impact on the food sector, because it takes up farming land with the growth of cities and decreases food supply since farmers progressively migrate to the cities. This research paper discusses urbanization with respect to a specific environment issues. Ecosystem and Ecology According to the Ecological Society of America (ESA) ecology signifies the study of the associations involving living beings, comprising humans, with the physical environment (Liu, Rendong, and Xuefeng 4-7). Consistent with the ecology discipline, physical environment denotes things like water, soil, and temperature just to mention a few. An ecosystem signifies a specific organizational level holding a varied set of living as well as non-living constituents that are self maintained. The ecosystem is controlled by negative and positive feedback loops. Additionally, ecosystems are typified by energy flows and motility of substances on pathways. The species of both plants and animals make up the living constituents of the ecosystem while water, soil, temperature, and air are some of the non-living constituents onto which living constituents rely for continued existence. The aforementioned natural constituents of ecosystems represent environmental resources from where a range of gains can be produced for human utilization. Ecosystems give services to all living beings. Environmental supplies of ecosystem in addition to their services to people are endless and valuable. A number of the basic resources to the natural equilibrium of the ecosystem and that could be affected by human infringement are biodiversity, water, and soil. Effects of urbanization on ecosystem supplies The association involving the urbanization and the environmental factors has been commonly examined from two diverse points of view. In a number of studies, urbanization is the core of research because it is an international progression. This progression not only signifies a concentration of residents, but also a profound conversion of the rural areas, and their ensuing environmental significance (Haiying and Lian 141-145). In contrast, in a numb