Climate change and status of urban environment in the developing countries Md. Saiful Islam Department of Electrical and Electronic Engineering, IUBAT- International University of Business Agriculture and Technology, Dhaka, Bangladesh Abstract: The urban environment, particularly in developing countries, is experiencing a variety of issues as a result of the changing global climate brought on by rapid urbanization. This essay examines the issues that the urban environments in developing nations are facing as a result of climate change. Cities in developing nations are more vulnerable than the industrialized nations. The effects of climate change on human health are significant, with about There are 1.9 million deaths from physical inactivity each year, 800,000 deaths from ambient urban air pollution, and 1.5 million annually due to indoor air pollution. Climate change and the population's rapid growth are increasing water scarcity and hinder the use of water for drinking and domestic purposes. The globe temperatures that cause the sea level to rise and, as a result, the crop's ability to grow food shortages by reducing production. Environmental refugees make up over 25 million individuals worldwide, or 58% of all refugees. The rate of eviction is relatively high (50 million) in rural areas of emerging nations. Famous towns around the world that are close to the seaside endure catastrophic disasters every year. Due to excessive rainfall, sea level rise, and storm surge, these are at danger of flooding. Natural disaster-related losses in China averaged 3.9 percent of GDP each year. Alexandria, Egypt; Banjul, Gambia; Tianjin, China; Jakarta, Indonesia; Bangkok, and Thailand will be impacted. Small island republics are especially vulnerable. Adaptive measurement is necessary to reduce the harm caused by climate change. To ensure that development and environmental policies contribute to a preventive approach to local and global urban environment sustainably, there is a need for a more active input from the public & private sector. Keywords: Climate, environment, developing countries, vulnerable 1. Introduction: All nations on the planet will be negatively impacted by climate change disproportionately. Due to factors including fast urbanization, significant population growth, and high population density, developing nations are much more vulnerable than the industrialized world. Changing weather will aggravate issues with developing nations' high population expansion, food agriculture, environmental concerns, current poverty, and safety. At the same time that the world is experiencing the unavoidable effects of climate change, metropolitan regions are seeing an increase in population. Up until the end of the century, urban populations will make up about 50% of the global population. 95 percent of the increase in the world's urban population will be caused by developing nations. By 2050, the developing world's urban population will total 5.3 billion, with 3.3 billion people living in Asia alone, accounting for 63% of the global urban population. People who live in less developed nations, frequently in cities with poor infrastructure. In reality, the fastest-growing cities in these nations are smaller towns and cities, which typically have less robust infrastructures than large cities. Many cities are situated in places that are prone to significant storm damage or a rise in sea level, such as coastal regions. The most dangerous neighborhoods are often where the urban poor reside. Developing nations lack the resources necessary to address the issues brought on by climate change. The effects of climate change on urban areas include disease outbreaks, more extreme weather, decreased agricultural productivity, natural disasters, water shortages, damage to primary industries and fisheries, and insecure access to food developing nations in Africa, Asia, and Latin America. The risks that are most likely to be brought on by or significantly made worse by the effects of climate change on a larger scale are floods, infectious diseases, and increased air pollution. With improved computer models and warning systems now available for hurricanes, tropical cyclones, dam failures, storm surges, rainstorms, and tsunamis, the scientific understanding of catastrophic flood events is advancing quickly. However, dynamic