immigration(legal & illegal hason the US

First, it affects the population growth here in US.As you sould know immigration is one of the most importanat factor on population growth with birth rate, death rate, and emmigration. The ecological footprint here is to big. Where most of the immigrants come from are less developed countries with scarce resources, where their ecological footprint is much more small. Immigrants in general term have inffluence in economics aspects such as laws, employment and enviromental issues. They are able to work hard for the lowest salary in countries like US. While they are an important aspect in the development of any country, they also spend less resources.