European Union representation within those institutions, a practice often referred to as "pooling of sovereignty". To become a member, a country must meet the Copenhagen criteria, defined at the 1993 meeting of the European Council in Copenhagen. These require a stable democracy that respects human rights and the rule of law; a functioning market economy; and the acceptance of the obligations of membership, including EU law. Evaluation of a country's fulfilment of the criteria is the responsibility of the European Council. No member state has yet left the Union, although Greenland (an autonomous province of Denmark) withdrew in 1985. Article 50 of
Fishing industry in Greenland based on a referendum, in 1985 this was replaced with five year agreements with the EU. Although in the 1970s and early 1980s the halibut industry in Greenland was low scale, it has since dramatically increased since the 1980s and in the future may develop into a purely commercial venture for many native people in the country. Although the industry grew dramatically in the 1990s, by 2000 depletion of stocks resulted in falling revenues and the closure of many fishing plants. This problem continued into 2002. In 2000, Greenland renewed its agreement with the European Union in which along with