Global warming means an increased greenhouse effect, which traps solar radiation, thereby increasing the overall temperature of the earth. Greenhouse gases create a blanket in the lower layers of the Earth's atmosphere and this phenomenon is mainly due to human activities. Average global temperatures and levels of CO2 in the atmosphere are higher than they have ever been in the past. Data shows that the last 25 years have been the warmest in the last 5 centuries. If the temperature increases by 4 – 5° C; a flood event that probably occurs only once every 100 years over the past century could occur every 10 to 50 years in vulnerable locations. UN members have pledged to limit warming to 2°C, but the current situation is heading towards 4-5°C by 2100, which seems catastrophic to scientists for biodiversity, extreme weather or l sea ​​level rise. An increase of 2-4°C can lead to a 10-20% increase in cyclonic intensity. This warming could lead to an increase in average surface temperatures of 3.5-5°C by the end of the century. The recent catastrophic climate events in India are the consequences of global warming. Mumbai, India's economic capital, is extremely vulnerable to rising sea levels. According to the Intergovernmental Panel on Climate Change (IPCC), the level of the Arabian Sea around Mumbai is steadily rising at the rate of 2.4 mm per year and is expected to rise by up to 15-38 cm by 2050. The city is located in a seismic zone and prone to experience a major earthquake or gigantic tsunami causing unimaginable loss of life and property. This necessarily means that this would affect the economy of the entire nation, the city being the commercial capital of India. According to a 2012 report, approximately 2.7 million people live in flood-prone areas...... middle of paper ......g construction practices: reduce the salt content of new building materials; redevelopment of older buildings; and examining the stability of coastal buildings at risk of soil erosionIncreased investments: investments in the healthcare sector, health facilities and health infrastructure to provide medical care to people affected by climate change.Introduction of energy conservation measures at all levelsImprovement of the urban ecosystem : creation of more open spaces, greenery, parks and tree-lined streets. The rising population and effects of global warming in Mumbai will put the city in even more danger in the coming days. The time has come for central, state and local governments to realize the gravity of the situation and adopt necessary policies in urban and environmental planning, where the inhabitants also actively participate to save the city.