INTRODUCTIONRio is the capital of the state of Rio de Janeiro, in the southeastern part of Brazil, known as the Costa Verde. Backed by coastal mountains, forests and fronted by the Atlantic, Rio enjoys a wonderful scenic location. Rio is a city of rich and poor, mainly immigrants live here. Mostly detained immigrants from poorer residents. Many expats dream of moving to Rio de Janeiro to experience the colorful carnival season, on the other hand, people come here to earn a living. There are positive and negative impacts of migration. Like highland values, off-limits sites for all types of development, high local taxes, the pull of pollution: cheap, available, clean, quiet land. BODYRio released the results of its 2010 census stating that 22.03% of Rio de Janeiro's 6,323,037 residents live in favelas or substandard and irregular housing communities. According to the new report, there are 1,393,314 people in 763 favelas in Rio. (Michael Royster) So in the very dirty favelas, rubbish everywhere, also very noisy and the air is not pleasant and precarious for a short time. Half the population of the favelas are immigrants. However, immigrants are good for the government. Because they also pay taxes: for water, electricity and apartment rent. It is also good for improving the economy. Because that's about a hundred dollars a month! The life of people in the hands of favela gangsters resists and becomes: take a bullet in the forehead. By the way, the average life expectancy here is 35-40 years. Rio de Janeiro has one of the highest crime rates in the world: 80 murders in a week, more than half of which in slums. Favelas live according to their own laws. Human life is worth 40 dollars - this is what is compared to half the paper and one of the most interesting artistic events in the world. Foreign visitors alone number around 500,000 every year. One of the groups most involved in Rio Carnival are the poorest favela neighborhoods. However, no matter how bad the situation the favela dwellers find themselves in, they join in the celebrations and actually "do" Rio Carnival. Carnival really means a lot to them, because for once during the year they can go out and have as much fun as possible. Conclusion In conclusion, according to the Brookings Institute's Global Cities initiative, Rio is a destination for migrants, both domestic and foreign. . 16% of residents of the Rio metropolitan area were born in another state, and Rio ranks third among large metropolitan areas for the percentage of foreign-born population (0.7%). More than half of these immigrants come from Portugal, along with Italy