Whoever has experienced the sweltering summer days of Dhaka will agree that average temperature of Dhaka City has increased over the decades. The scorching heat during daytime and hot, see thing nights coupled with load shedding are the bane of the city dweller's life. But why the temperature is so high in Dhaka? The answer can be attributed to a unique feature of the urban climate known as Urban Heat Island (UHI) Effect. The urban heat island phenomenon was first discovered in the early 1800s in London. But it is not clear yet whether it is related to global warming.