Bangladesh is a low lying highly density populated and vulnerable due to climate change that has continuously changing. Temperature, carbon emission and sea level have significantly increased globally that impact developing countries and Bangladesh is one the victim for climate change refugees. There are 35 Million people representing 29% of population live in 19 coastal districts of Bangladesh. 1 m sea level rise will impact 17% of Bangladesh will be submerged and around 20 million people will be climate change refugees on Bangladesh (Bachelet M, 2021). In 2021, around 10 million people are displaced due to climate change. On the other hand, according to the Air quality Index 2021, Bangladesh USAIQ-161 was the highest polluted country in 2021 compared to Chad, Pakistan, Tajikistan, India, and Nepal. Air pollution increases the economic cost, reduce life expectancy rate, affected children 3-14 years’ old and pregnant women and kills a large number of human lives. The main causes of air pollution is anthropogenic like burning of fossil, coal, brick kilns, a huge motor vehicular emissions that increase the global warming and consequences of increase level rise that lead to increase the climate change refugees in Bangladesh. This paper will uncover the relation among the global warming, carbon emission and sea level rises are the consequences of the climate change refugees of Bangladesh.