The industrialised world’s emphasis on green issues holds back developing countries. Because this is seen as interference in their affairs, it also contributes to a greater divide between the First and Third worlds. Many also believe it is a deliberate attempt to stop possible economic competitors. After all, the USA and EU already put high tariffs (import taxes) on products made cheaply in developing countries (e.g. canned tomatoes, shoes) which could be sold in America or Europe. By limiting the development of profitable but polluting industries like steel or oil refineries we are forcing nations to remain economically backward.