Defining what constitutes a “green job” definitively has proven difficult. A wide range of definitions have been proposed that range from being very narrow and specific, such as the Eurostat definition of eco-industries (i.e. industries producing environmental goods and services) to more broader industry classifications that also encompass industries that are dependent on environmental resources and environmental quality, such as those developed by the United Nations and the ILO. This disparity in definitions also produces a disparity in job numbers.