Overpopulation

I was reading an article about how overpopulation and enviormental problems are very related. Overpopulation, acording to this article is the most severe problem we have. Why? I think because if we didnt had overpopulation, a lot of problems would be not a problems anymore. Imagine if there was no overpopulation we wouldnt have the need to burn so much fossil fuels, or we wouldn't contaminate so much, or more jobs will be available. I think that overpopulation is the mayor problem we, as a human race, are facing.