A framework convention on the protection of the Caspian Sea came into force in Azerbaijan on Tuesday, the country\'s presidential press service told Interfax. The Convention was ratified by the Azerbaijani Parliament and signed by President Ilkham Aliyev on April 4, 2006. The Convention was signed in Teheran on November 4, 2003. It is aimed at joint protection of the Caspian Sea environment, including defense, recovery and prolonged effective usage of the sea\'s biological resources by all Caspian Sea countries. The Convention was prepared on the basis of U.N.-initiated talks amongst Caspian Sea countries in 1995-2003. (Interfax)